| Ext | Data Formats |
| .#24 | Printer data file for 24 pin matrix printer (LocoScript) |
| .#ib | Printer data file (LocoScript) |
| .#sc | Printer data file (LocoScript) |
| .#st | Standard mode printer definitions (LocoScript) |
| .$#! | Cryptext |
| .$$$ | Temporary file |
| .000 | Compressed harddisk data (DoubleSpace) |
| .001 | Fax (many) |
| .075 | 75x75 dpi display font (Ventura Publisher) |
| .085 | 85x85 dpi display font (Ventura Publisher) |
| .091 | 91x91 dpi display font (Ventura Publisher) |
| .096 | 96x96 dpi display font (Ventura Publisher) |
| .0b | Printer font with lineDraw extended character set (PageMaker) |
| .1 | Roff/nroff/troff/groff source for manual page (cawf2.zip) |
| .113 | Iomega Backup file |
| .123 | Lotus file |
| .15u | Printer font with PI font set (PageMaker) |
| .1st | Usually README.1ST text |
| .2d | 2d Drawings (VersaCad) |
| .2dl | 2d Libraries (VersaCad) |
| .3d | 3d Drawings (VersaCad) |
| .3dl | 3d Libraries (VersaCad) |
| .301 | Fax (Super FAX 2000 - Fax-Mail 96)) |
| .386 | Intel 80386 processor driver (Windows 3.x) |
| .3ds | Graphics (3D Studio) |
| .3fx | Effect (CorelChart) |
| .3gp | Multimedia File |
| .3gr | Data file (Windows Video Grabber) |
| .3ko | NGRAIN Mobilizer |
| .3t4 | Binary file converter to ASCII (Util3) |
| .411 | Sony Mavica Data file |
| .4c$ | Datafile (4Cast/2) |
| .4sw | 4dos Swap File |
| .4th | Forth source code file (ForthCMP - LMI Forth) |
| .5cr | Preconfigured drivers for System 5cr and System 5cr Plus |
| .669 | Music (8 channels) (The 669 Composer) |
| .6cm | Music (6 Channel Module) (Triton FastTracker) |
| .8 | A86 assembler source code file |
| .8cm | Music (8 Channel Module) (Triton FastTracker) |
| .8m | Printer font with Math 8 extended character set (PageMaker) |
| .8u | Printer font with Roman 8 extended character set (PageMaker) |
| .a | Ada source code file Library (unix) |
| .a11 | Graphics AIIM image file |
| .a2b | A2B Player Playlist |
| .a3d | Amapi 3D Modeling file |
| .a3m | Unpackaged Authorware MacIntosh file |
| .a3w | Unpackaged Authorware Windows file |
| .a4a | Authorware 4.x Library |
| .a4m | Unpackaged Authorware MacIntosh file |
| .a4p | Authorware file packaged without runtime |
| .a4w | Unpackaged Authorware Windows file |
| .a5w | Unpackaged Authorware Windows file |
| .aab | Macromedia Authorware Binary |
| .aam | Authorware shocked file |
| .ab2 | Parson\'s Address Book |
| .ab6 | Datafile (ABStat) |
| .ab8 | Datafile (ABStat) |
| .aba | Palm Address Book file |
| .abc | ABC FLOWCHARTER 1.x flowchart ABC2K Audio/Video Controller Software |
| .abd | AmBiz Bonus Calculator data file Adventure Builder database |
| .abf | Adobe Binary Font |
| .abk | Automatic backup file (CorelDRAW) |
| .abm | ImagePals Photo Album Document Montage Photo Album file PhotoPlus Album file |
| .abs | Abstracts (info file) Data file (Abscissa) MPEG audio sound file |
| .abw | AbiWord document |
| .abx | WordPerfect Address Book file |
| .ac3 | AC3 Audio File Format |
| .aca | Microsoft Agent Character file Project (Project Manager Workbench) |
| .acb | Graphics (ACMB) |
| .acc | Program (DR-DOS - ViewMax) (GEM / resident) |
| .acd | Sonic Foundry Acid music file |
| .ace | Ace Archiver compressed file |
| .acf | Microsoft Agent Character file Adobe Photoshop Custom Filter |
| .aci | ACI Development Appraisal |
| .acl | Document file (Audit Command Language) |
| .acm | Audio Compression Manager Driver Photoshop command button Windows system file ACBM image file Interplay compressed Sound file |
| .acs | MS Agent Character file |
| .act | Actor source code file Foxdoc Action Diagrams (FoxPro) Presentation (Action!) |
| .acv | OS/2 Audio Drivers Photoshop Saved Curve |
| .ad | Screen saver data (AfterDark) |
| .ada | Ada source code file |
| .adb | Ada Package Body |
| .adc | Bitmap graphics (16 colors) (Scanstudio) |
| .adf | Adapter Description file Admin Config file Amiga Disk File Dog Creek QC Mask file |
| .adi | Graphics (AutoCAD) |
| .adl | Mca adapter description library (QEMM) |
| .adm | After Dark Screen Saver Module Windows Policy Template Addict Compiled Dictionary Advantage Data Server Database Memo file |
| .adn | Add-in (Lotus 1-2-3) |
| .ado | Photoshop Duotone Options Stata Program |
| .adp | FaxWorks Modem setup file Astound Dynamite file MS Access Project AOLserver Dynamic Page file |
| .adr | Address Book Address Plus Database After Dark Random Screen Saver Module Opera Web Browser Bookmark file Smart Address Address Book |
| .ads | Ada Package Specification |
| .adt | Datafile for cardfile application (HP NewWave) Fax (AdTech) |
| .adx | Document (Archetype Designer) |
| .adz | GZ-Packed Amiga Disk file |
| .aeh | iPer Advanced Embedded Hypertext |
| .aex | PGP Armored Extracted Public Encryption Key |
| .af2 | Flowchart (ABC FlowCharter 2.0) |
| .aff | AnyForm Form file |
| .afi | Truevision bitmap graphics |
| .afl | Font file (for Allways) (Lotus 1-2-3) |
| .afm | Type 1 font metric ASCII data for font installer (ATM - many) Datafile for cardfile application (HP NewWave) |
| .aft | AnyForm template file |
| .agp | Aspen Graphics Pages |
| .agw | Aspen Graphics Windows |
| .ai | Vector graphics (Adobe Illustrator) |
| .aiff | Audio interchange file format |
| .ain | Compressed file archive created by AIN |
| .aio | APL file transfer format file |
| .air | Automatic Image Registration |
| .ais | Array of Intensity Samples graphics (Xerox) |
| .aix | Datafile for cardfile application (HP NewWave) |
| .alb | JASC Image Commander Album Photo Soap2 file Steinberg Cubase or VST Backup Song file |
| .albm | webAlbum Photo Album HP Photosmart Photo Printing Album |
| .all | Format file for working pages (Always) General printer information (WordPerfect for Win) Symbol and font files (Arts & Letters) |
| .als | Alias Image Calmira Shortcut file |
| .alt | Menu file (WordPerfect Library) |
| .alz | ALZip Compressed file |
| .amf | Music (Advanced Module Format) |
| .amg | Compressed file archive created by AMGC System image file (Actor) |
| .amp | Photoshop Arbitrary Map Settings |
| .anc | Animation file format (MorphInk) |
| .ani | Animation (Presidio - many) |
| .anm | Animation (Deluxe Paint Animator) |
| .ann | Help Annotations (Windows 3.x) |
| .ans | Ansi graphics (character animation) Ascii text ANSI character set (NewWave Write) |
| .aos | Add-On Software (Nokia 9000) |
| .ap | Compressed Amiga file archive created by WHAP Datafile (Datalex EntryPoint 90) Artwork Systems Program (ArtPro) |
| .apc | Printer driver (Lotus 1-2-3) |
| .apd | Printer driver (Lotus 1-2-3) |
| .ape | Music format (different players) |
| .apf | Printer driver (Lotus 1-2-3) |
| .api | Passed parameter file (1st Reader) Printer driver (Lotus 1-2-3) |
| .apl | APL work space format file |
| .apm | ArcPad 6 file |
| .app | Add-in application file (Symphony) Application object file (dBASE Application Generator) Executable application file (DR-DOS - NeXTstep - Atari) Generated application (FoxPro) |
| .apr | Employee performance review (Employee Appraiser) |
| .aps | MS Visual C++ file ArcPad 5 Symbology file |
| .apx | Appexpert database file (Borland C++ 4.5) |
| .arc | Compressed file archive created by ARC (arc602.exe/pk361.exe) Compressed file archive created by SQUASH (squash.arc) |
| .arf | Automatic Response file |
| .arg | AutoCAD Profile Export file |
| .ari | Compressed file archive created by ARI |
| .arj | Compressed file archive created by ARJ (arj241.exe) |
| .arl | AOL Organizer File |
| .ark | Arc file archive created by CP/M port of ARC file archiver Compressed file archive created by QUARK |
| .arr | Arrangement (Atari Cubase) |
| .ars | Adobe After Effects Render |
| .art | Graphics (scrapbook) (Art Import) Raster graphics (First Publisher) |
| .arv | Arsiv File AutoRoute User Information |
| .arx | Compressed file archive created by ARX |
| .asa | MS Visual InterDev file Active Server Document |
| .asc | Ascii text file Transport armor file (PGP) |
| .ascx | Microsoft ASP.NET user control file |
| .asd | Autosave file (Word for Windows) Presentation (Astound) Screen driver (Lotus 1-2-3) |
| .asf | Datafile (STATGRAPHICS) Screen font (Lotus 1-2-3) |
| .ash | Assembly language header file (TASM 3.0) |
| .asi | Assembler include file (Turbo C - Borland C++) |
| .asl | Adobe Photoshop Layer file |
| .asm | Assembly source code file Pro/Engineer Assembly file |
| .asmx | Microsoft .NET Web Service file |
| .aso | Assembler object (object orientated) file (Turbo Assembler) |
| .asp | Microsoft Active Server Page Aspect source code file (Procomm Plus) Association of Shareware Professionals OMBUDSMN.ASP notice |
| .aspx | Microsoft ASP.NET file |
| .asr | Ms Automap Route Photoshop Scratch Area |
| .asx | Microsoft Windows Media Active Stream Redirector file HTML Active X script AMX Axcess control system file |
| .at2 | Auto template (Aldus Persuasion 2.0) |
| .atm | Adobe Type Manager data/info |
| .atn | Adobe Photoshop Action file |
| .atr | Lightscape Material Library |
| .att | AT&T Group 4 Bitmap |
| .au | Sound (audio) file (SUN Microsystems) |
| .aud | Audio file |
| .aut | AutoIt Script PocketWear Car Lease Kit vehicle data file TLG Workplace CD search file Xitami Webserver Admin Password file GPSMan-autoMapic file Signwave Auto-Illustrator file Descent Manager Mission file Authentication file (various) Interactive Pictures iPIX Format |
| .aux | Auxillary references (TeX/LaTeX) Auxiliary dictionary (ChiWriter) |
| .ava | Publication (Avagio) |
| .avb | Inoculan Anti-Virus virus infected file Microsoft Chat character file |
| .avd | Avery Label Pro Data file |
| .avi | Audio Video Interleaved animation file (Video for Windows) |
| .avs | Animation file Application Visualization System Format Stardent AVS-X image Winamp Advanced Visualization Studio file |
| .avx | ArcView file |
| .aw | Text file (HP AdvanceWrite) |
| .awb | Lavasoft Ad-aware backup file |
| .awd | AWD MS Fax Award BIOS file AWK Language Source Code file |
| .awe | Adobe Acrobat Bookmark XML file |
| .awk | Awk script/program |
| .awm | Movie (Animation Works) |
| .awr | Telsis Digital Audio file |
| .aws | Data (STATGRAPHICS) |
| .ax | DirectShow Filter |
| .axd | Avery Label Pro Re-Index file Actrix Technical file |
| .axe | Paradigm C++ Integrated Debugger file ChordMaster MS Autoroute export file |
| .axg | MS Autoroute Trip file |
| .axl | ArcIMS XML Project file |
| .axs | AMX Axcess control system file format |
| .axt | ZenWorks snAPPshot ASCII Application Object template Photoshop Replace Color/Color Range |
| .axx | axxess files used as backups of Inter-Tel databases |
| .azz | AZZ Cardfile |
| .b | Batch list (APPLAUSE) |
| .b&w | Black and white graphics (atari - mac) |
| .b~k | backup file Mono binary screen image (1st Reader) |
| .b16 | PCO Graphic file |
| .b1n | Both mono and color binary screen image (1st Reader) |
| .b1s | Booksmith |
| .b30 | Printer font (JLaser - Cordata) (Ventura Publisher) |
| .b3d | 3D Builder file |
| .b8 | Raw graphics (one byte per pixel) plane two (PicLab) |
| .b_w | Black and white graphics (atari - mac) |
| .bad | Bad file (Oracle) |
| .bag | PMMail Mail Index file OS/2 Netfinity Manager Sysinfo file AOL Instant Messenger file |
| .bak | Backup file |
| .bal | Music score (Ballade) |
| .ban | Sierra Print Artist Banner |
| .bar | Horizontal bar menu object file (dBASE Application Generator) |
| .bas | Basic source code file |
| .bat | Batch file (DOS) |
| .bb | Database backup (Papyrus) |
| .bbl | Bibliographic reference (TeX/BibTeX) |
| .bbm | Brush (Deluxe Paint) |
| .bbs | Bulletin Board System announce or text info file |
| .bcf | ConfigSafe Snapshot index The Sims (Maxis) File |
| .bch | Batch process object file (dBASE Application Generator) Datafile (Datalex EntryPoint 90) |
| .bck | Backup |
| .bcm | MS Works Communications file |
| .bcn | Business Card Pro Design |
| .bco | Outline font description (Bitstream) |
| .bcp | Borland C++ makefile |
| .bct | Business Card Designer template |
| .bcw | Environment settings (Borland C++ 4.5) |
| .bde | Borland Database Engine |
| .bdf | Bitmap Distribution Format font file (X11) Datafile (Egret) |
| .bdr | Border (MS Publisher) |
| .bez | Outline font description (Bitstream) |
| .bf2 | Bradford 2 font |
| .bfm | Font metrics (unix/Frame) |
| .bfx | Fax (BitFax) |
| .bga | Bitmap graphics |
| .bgt | Quicken 2002 Internet Common File |
| .bgi | Borland Graphics Interface device driver |
| .bgl | Flight Simulator scenery file |
| .bgt | Quicken 2002 Internet Common File |
| .bib | Bibliography (ASCII) Database - not compatible with TeX format (Papyrus) Literature database (TeX/BibTeX) |
| .bic | Civilization III Scenario |
| .bid | BidMaker 2002 file |
| .bif | Binary Image Format b&w graphics (Image Capture board) |
| .bik | BioCharter Profile backup file Bink Game video file |
| .bin | Binary file |
| .bio | OS/2 BIOS |
| .bit | Bitmap Image Worms Armageddon Imported Map Worms World Party Imported Map |
| .bk | Faxbook (JetFax) |
| .bk! | Document backup (WordPerfect for Win) |
| .bk1 | Timed backup file for document window 1 (WordPerfect for Win) |
| .bk2 | Timed backup file for document window 2 (WordPerfect for Win) |
| .bk3 | Timed backup file for document window 3 (WordPerfect for Win) |
| .bk4 | Timed backup file for document window 4 (WordPerfect for Win) |
| .bk5 | Timed backup file for document window 5 (WordPerfect for Win) |
| .bk6 | Timed backup file for document window 6 (WordPerfect for Win) |
| .bk7 | Timed backup file for document window 7 (WordPerfect for Win) |
| .bk8 | Timed backup file for document window 8 (WordPerfect for Win) |
| .bk9 | Timed backup file for document window 9 (WordPerfect for Win) |
| .bkf | Microsoft Backup file |
| .bkg | Background file UWXAFS Binary Format Data file |
| .bkp | Backup file (Write - TurboVidion DialogDesigner) |
| .bkw | Mirror image of font set (FontEdit) |
| .blb | DreamWorks Resource Archive |
| .bld | Bloadable picture (BASIC) |
| .blend | Blender 3D file |
| .blk | Temporary file (WordPerfect for Win) Lightscape Block Library Alias Wavefront Image VersaPro Block |
| .blt | Saved AIM Buddy List file Wordperfect for DOS file |
| .bm | Bitmap graphics |
| .bmf | Corel Image file |
| .bmi | 3ds max Executable |
| .bmk | Help Bookmarks (Windows 3.x) |
| .bmp | Bitmap graphics (PC Paintbrush - many) |
| .bmx | Buzz music file |
| .bnd | Typequick file |
| .bnk | Adlib instrument bank file |
| .bob | BobDown Downloading Program Bob Raytracer |
| .bom | MicroSim PCBoard Bill of Materials Orcad Schematic Capture Bill of Materials file Softshare Delta Business Object Model |
| .boo | Compressed file ASCII archive created by BOO (msbooasm.arc) |
| .book | Adobe FrameMaker Book |
| .box | Myriad Jukebox file Notes Mailbox |
| .bpc | Chart (Business Plan Toolkit) |
| .bpl | Delphi Library |
| .bpt | Bitmap fills file (CorelDRAW) |
| .bqy | BrioQuery file |
| .br | Script (Bridge) |
| .brd | Eagle Layout file |
| .brf | Braille ASCII file |
| .brk | Fax (Brooktrout Fax-Mail) |
| .brn | BornoSoft Bangla2000 (a Bengali word processor) File extension |
| .bro | Tree Professional Broadleaf Creator file |
| .brp | Tree Professional Broadleaf Creator image |
| .brt | Micrografx Picture Publisher file |
| .brx | Multimedia browsing index |
| .bsa | Compressed file archive created by BSARC |
| .bsb | MapInfo Sea Chart SWAT Sub-basin Output file |
| .bsc | Compressed Apple II file archive created by BINSCII Database (Source Browser) Pwbrmake object file (MS Fortran) |
| .bsl | BSPlayer Configuration file |
| .bsp | Half-life/TFC/CS Map Quake Map |
| .bst | BibTeX Style file |
| .btm | Batch To Memory batch file (4DOS) |
| .bto | Baytex Organix! 2001 Language Kit |
| .btr | Btrieve Database file MS Frontpage-related file |
| .btx | DB/TextWorks Database Term & Indexes |
| .bud | Quicken Backup |
| .bug | Bugs and Problems |
| .bup | Backup file |
| .but | Button definitions (Buttons!) |
| .buy | Datafile format (movie) |
| .bv1 | Overflow file below insert point in Doc 1 (WordPerfect for Win) |
| .bv2 | Overflow file below insert point in Doc 2 (WordPerfect for Win) |
| .bv3 | Overflow file below insert point in Doc 3 (WordPerfect for Win) |
| .bv4 | Overflow file below insert point in Doc 4 (WordPerfect for Win) |
| .bv5 | Overflow file below insert point in Doc 5 (WordPerfect for Win) |
| .bv6 | Overflow file below insert point in Doc 6 (WordPerfect for Win) |
| .bv7 | Overflow file below insert point in Doc 7 (WordPerfect for Win) |
| .bv8 | Overflow file below insert point in Doc 8 (WordPerfect for Win) |
| .bv9 | Overflow file below insert point in Doc 9 (WordPerfect for Win) |
| .bwb | Spreadsheet application (Visual Baler) |
| .bwi | Blindread/Blindwrite |
| .bwr | Beware (buglist) (Kermit) |
| .bwt | Blindread/Blindwrite |
| .bxx | blaxxun Contact |
| .bz2 | Bzip 2 UNIX Compressed file |
| .c | C source code file Compressed unix file archive created by COMPACT |
| .c++ | C++ source code file |
| .c-- | Source code (Sphinx C--) |
| .c00 | Print file (Ventura Publisher) |
| .c01 | Genesis 2000 |
| .c2d | WinOnCD CD Image |
| .c4d | MAXON Cinema 4D File (Graphics) |
| .c60 | Midtronics Battery Management Software |
| .c86 | C source code file (Computer Innovation C86) |
| .ca | Initial cache data for root domain servers (Telnet) |
| .cab | Cabinet File (Microsoft installation archive) |
| .cad | Softdesk Drafix CAD File |
| .cac | dBASE IV executable when caching on/off (see cachedb.bat) |
| .cad | Document (Drafix Windows CAD) |
| .cag | MS Clip Gallery Catalog file |
| .cal | Calendar file (Windows 3.x) Calendar Maker Pro Spreatsheet (SuperCalc) |
| .calb | Coolect Album file (Coolect Album Player; www.coolect.com) |
| .cam | Casio Camera Graphic |
| .can | Fax (Navigator Fax) |
| .cap | Caption (Ventura Publisher) Session capture file (Telix) |
| .car | AtHome Assistant file Carrara Environment NeoBook Cartoon |
| .cas | Comma-delimited ASCII File |
| .cat | Catalog (dBASE IV) |
| .cb | Clean Boot File (Microsoft) Brief Macro Source Code |
| .cbc | Fuzzy logic system (CubiCalc) |
| .cbf | Calendar Builder file |
| .cbl | Cobol source code file |
| .cbm | Compiled bitmap graphics (XLib) |
| .cbp | CentralBuilder Project |
| .cbt | Computer Based Training (many) |
| .cc | C++ source code file |
| .cca | CC:Mail archive file |
| .ccb | Visual Basic Animated Button Configuration |
| .ccc | Bitmap graphics (native format) (Curtain Call) |
| .ccd | CloneCd Related file Vector CAD Program file |
| .cce | Calendar Creator 2 Event file |
| .ccf | Communications configuration file (Symphony) |
| .cch | Chart (CorelChart) |
| .ccl | Communication Command Language file (Intalk) |
| .cco | Btx Graphics file (XBTX) |
| .cct | Macromedia Director Shockwave file |
| .ccx | Corel PrintHouse file |
| .cda | CD Audio Track |
| .cdb | Card database (CardScan) Main database (TCU Turbo C Utilities) |
| .cde | Honeywell Hybrid Control Designer |
| .cdf | Graphics (netcdf) |
| .cdi | Phillips Compact Disk Interactive format |
| .cdk | Document (Atari Calamus) |
| .cdl | CaseWare Working Papers Document Link SignLab Vector Graphic |
| .cdm | Visual dBASE Custom Data Module |
| .cdp | CD/Spectrum Pro |
| .cdr | Vector graphics (CorelDRAW native format) |
| .cdt | Data (CorelDraw 4.0) |
| .cdx | Compound index (FoxPro) |
| .ce | Main.ce (The FarSide Computer Calendar) |
| .ceg | Bitmap graphics (Tempra Show - Edsun Continuous Edge Graphics) |
| .cel | Graphics (Autodesk Animator - Lumena) |
| .cf | Configuration file (imake) |
| .cfb | Comptons multimedia file |
| .cfc | Macromedia Coldfusion component extension |
| .cfg | Configuration |
| .cfl | Chart (CorelFLOW) |
| .cfm | ColdFusion Markup Language (Allaire) |
| .cfn | Font data (Atari Calamus) |
| .cfo | C Form Object internal format object file (TCU Turbo C Utilities) |
| .cfp | Fax (The Complete Fax Portable) |
| .cga | CGA display font (Ventura Publisher) |
| .cgi | Common Gateway Interface script |
| .cgm | Computer Graphics Metafile vector graphics (A&L - HG - many) |
| .ch | Header file (Clipper 5) |
| .ch3 | Chart (Harvard Graphics 3.0) |
| .ch4 | Presentation (Charisma 4.0) |
| .chd | Font descriptor (FontChameleon) |
| .chi | Document (ChiWriter) |
| .chk | Recovered data (ChkDsk) Temporary file (WordPerfect for Win) |
| .chl | Configuration History Log |
| .chm | Compiled HTML |
| .chn | Data (Ethnograph 3) |
| .cho | ChordPro file |
| .chp | Chapter file (Ventura Publisher) |
| .chr | Character set (Turbo C - Turbo Pascal) |
| .cht | Chart (Harvard Graphics 2.0 - SoftCraft Presenter) Interface file for ChartMaster (dBASE) |
| .cid | AnalogX Caller ID file |
| .cif | Caltech Intermediate Format graphics Chapter information (Ventura Publisher) |
| .cil | Clip Gallery Download Package |
| .cix | Database index (TCU Turbo C Utilities) |
| .ckb | Keyboard mapping (Borland C++ 4.5) |
| .cl | Common LISP source code file |
| .cl3 | Easy CD Creator Layout file |
| .cl4 | Easy CD Creator Layout file |
| .cl5 | Easy CD Creator Layout file |
| .clb | ICQ Contact List MS Office XP Developer Code Librarian cdrLabel Compact Disc Label |
| .clp | Clip art graphics (Quattro Pro) Clipboard file (Windows 3.x) Compiler script file (clip list) (Clipper 5) |
| .clr | Color binary screen image (1st Reader) Color definitions (Photostyler) |
| .cls | C++ class definition file |
| .cm | Data file (CraftMan) |
| .cmd | Batch file (OS/2) Command (dBASE - Waffle) External command menu (1st Reader) |
| .cmf | FM-music file (Creative Music File) |
| .cmk | Card (Card Shop Plus) |
| .cmm | Cmm script (batch) file (CEnvi) |
| .cmo | Virtools Composition file |
| .cmp | Header file for PostScript printer files (CorelDRAW) User dictionary (MS Word for DOS) Bitmap graphics (Lead CMP compression) |
| .cmq | Culturemetrics file |
| .cmt | Culturemetrics file |
| .cmv | Animation (CorelMove CorelDraw 4.0) |
| .cmx | Corel PhotoPaint Image Corel Presentation Exchange Image The Sims (Maxis) 3D Body Mesh Data Apple Viewer file |
| .cnc | CNC general program data |
| .cnd | ControlDraw file Embroidery Design file |
| .cnf | Configuration (program - printer setup) |
| .cnt | Helpfile contents |
| .cnv | Data conversion support file (Word for Windows) Temporary file (WordPerfect for Win) |
| .cob | Cobol source code file |
| .cod | Datafile (Forecast Plus - MS Multiplan - StatPac Gold) Program compiled code (FORTRAN) Template source file (dBASE Application Generator) Videotext file |
| .col | Color palette (Autodesk Animator - many) Spreadsheet (MS Multiplan) |
| .com | Command (memory image of executable program) (DOS) |
| .con | Configuration file (Simdir) |
| .cor | Protein Structure file Web GPS Correction Server Export file WMOVIEC Input file |
| .cpd | Script (Complaints Desk) |
| .cpe | MS Fax Cover Sheet |
| .cpf | Fax (The Complete Fax) |
| .cph | Corel Print House image |
| .cpi | Code Page Information file (DOS) Colorlab Processed Image bitmap graphics |
| .cpl | Control panel file (Windows 3.x) Presentation (Compel) |
| .cpo | Corel Print House file |
| .cpp | C++ source code file Presentation (CA-Cricket Presents) |
| .cps | Backup of startup files by Central Point PC Tools autoexec.cps coloured postscript files |
| .cpt | Compressed Mac file archive created by COMPACT PRO (ext-pc.zip) Corel Photo-Paint Image Encrypted memo file (dBASE) Template (CA-Cricket Presents) |
| .cpx | Control Panel Applet Corel Presentation Exchange Compressed Drawing |
| .cpy | Copy Books Data file |
| .cpz | Music text file (COMPOZ) |
| .crd | Cardfile (Windows 3.x - YourWay) ColdRED Script file Guitar Chord file |
| .crf | Cross-reference (MS MASM - Zortech C++) |
| .crh | Links Games Course file MS Golf Image file |
| .crp | Encrypted database (dBASE IV) |
| .crs | File Conversion Resource (WordPerfect 5.1) |
| .crt | Terminal settings information (Oracle) |
| .crtr | Multi-Ad Creator 7 document |
| .cru | Compressed file archive created by CRUSH |
| .crx | Links Games Course file |
| .crz | Links Games Course file |
| .csa | Comma Deliminated Text Ultimate Ride Roller Coaster |
| .csf | Van Dyke\'s CRT/SecureCRT Script file |
| .csg | Graph (Statistica/w) |
| .csh | Hamilton Labs C Shell Script file |
| .csk | Claris Works |
| .csm | Precompiled headers (Borland C++ 4.5) |
| .csp | Pc Emcee Screen Image file (Computer Support Corporation) |
| .css | Datafile (CSS - Stats+) Datasheet (Statistica/w) |
| .cst | Macromedia Director Cast file |
| .csv | Comma Separated Values text file format (ASCII) Adjusted EGA/VGA palette (CompuShow) |
| .ctc | Control file (PC Installer) |
| .ctd | Cobra Track Dump Cardtable file Marine Data file Simpsons Cartoon Studio Export file |
| .ctf | Character code translation file (Symphony) |
| .ctg | Cartridge Definition file ChessBase Opening Book Canon Powershot Pro 70 Info file |
| .ctl | Control file (dBASE IV - Aldus Setup) Setup information |
| .ctt | Labview file |
| .ctx | Course TeXt file (Microsoft online guides) Ciphertext file (Pretty Good Privacy RSA System) |
| .cty | SimCity City file |
| .cue | MS Cue Cards data |
| .cuf | C Utilities Form definition (TCU Turbo C Utilities) |
| .cul | Windows cursor library (IconForge, ImageForge, ImageForge PRO) |
| .cur | Cursor image file (Windows 3.x) |
| .cut | Bitmap graphics (Dr. Halo) |
| .cv4 | Color file (CodeView) |
| .cv5 | Canvas version 5 |
| .cva | Compaq Diagnostics |
| .cvb | Borland BDE File |
| .cvp | Cover page (WinFax) |
| .cvr | WinFax Cover Sheet ElectraSoft Fax Cover Sheet |
| .cvs | Graphics (Canvas) |
| .cvt | Backup file for CONVERTed database file (dBASE IV) |
| .cvw | Color file (CodeView) |
| .cwk | Claris Works data |
| .cwz | CropWalker file |
| .cxp | Core Media Player XML-based Playlist File |
| .cxt | Macromedia Director Protected Cast file |
| .cxx | C++ source code file (Zortech C++) |
| .d00 | Blaster Master Pro File AdLib Format File |
| .d2s | Character file (Diablo 2) |
| .d3d | File Extension for Desktop-3D Notes Compressed Draw 3D file |
| .d64 | Commodore 64 Emulator Disk Image |
| .dat | Data file in special format or ASCII Gunlok Archive Mitsubishi DJ-1000 and Photorun Native Format Nascar Racing Archive SPOT Graphic WordPerfect Merge Data |
| .day | Journal file |
| .db | Configuration (dBASE IV - dBFast) Database (Paradox - Smartware) |
| .db$ | Temperature debug info (Clarion Modula-2) Temporary file (dBASE) |
| .db2 | Database (dBASE II) |
| .db3 | Database (dBASE III) |
| .dba | Datafile (DataEase) |
| .dbb | ANSYS Database Backup Mopheus music file |
| .dbd | Business data (Business Insight) Debug info (Clarion Modula-2) |
| .dbf | Database file (dBASE III/IV - FoxPro - dBFast - DataBoss) Oracle 8.x Tablespace File |
| .dbg | Symbolic debugging information (MS C/C++) |
| .dbk | Database backup (dBASE IV) |
| .dbl | Windows XP Activation file |
| .dbm | Datafile (DataEase) Cold Fusion Template Menu template (DataBoss) |
| .dbo | Compiled program (dBASE IV) |
| .dbs | Database in SQL Windows format Datafile (PRODAS) Printer description file (Word - Works) |
| .dbt | Data Base Text (Clipper) Foxbase+ style memo (FoxPro) Memo file for database w/same name (dBASE IV - dBFast) |
| .dbw | Windows file (DataBoss) |
| .dbx | Database DataBeam Image MS Visual Foxpro Table |
| .dca | Document Content Architecture text file (IBM DisplayWrite) |
| .dcf | Disk image file |
| .dcm | DCM Module Format Dicom |
| .dcp | Data CodePage (OS/2) |
| .dcr | Kodak Proprietary Image Format Shockwave file |
| .dcs | Bitmap graphics (CYMK format) (QuarkXPress) Datafile (ACT! Activity Files) |
| .dct | Database dictionary (Clarion Database Developer) Spell checking dictionary (Harvard Graphics 3.0 - Symphony) |
| .dcx | FAX Image ElectraSoft Fax PC-Paintbrush file Bitmap Graphics (Multipage PCX) Macros MS Visual Foxpro Database Container |
| .dd | Compressed Macintosh file archive created by DISKDOUBLER |
| .ddb | Bitmap graphics |
| .ddc | DivX Descriptor Description File |
| .ddf | MS Data Definition Language file |
| .ddi | Diskdupe Image file (ddupe322.zip) |
| .ddp | Device Driver Profile file (OS/2) |
| .de | MetaProducts Download Express incompletely downloaded file |
| .deb | Debug script (DOS Debug) |
| .dec | VersaPro Declaration file |
| .def | Assembly header file (Geoworks) DATAIR data entry format file Defaults - definitions |
| .dem | Demonstration Graphics (VistaPro) |
| .des | Description Text Tribes 2 Game file Quickbooks Template Pro/DESKTOP file Interscope BlackBox file |
| .dev | Device driver |
| .dfd | Data Flow Diagram graphic (Prosa) |
| .dff | Criterion RenderWare 3.x 3D object format |
| .dfi | Outline font description (Digifont) |
| .dfl | Default program settings (Signature) FreshDownloads (FreshDownload List temp file) |
| .dfm | Data Flow Diagram model file (Prosa) |
| .dfs | Delight Sound file |
| .dft | Fakt2000 file SolidEdge CAD file Workshare Synergy file PC Draft file |
| .dfv | Printing form (Word) |
| .dfx | Drafix file |
| .dgn | Graphics (MicroStation) |
| .dgr | Fax Page (MS Outlook Express) DART Pro 98 File Group Details |
| .dgs | Diagnostics |
| .dh | Dependency information for .ph (Geoworks) |
| .dhp | Dr. Halo PIC Format graphics (Dr. Halo II - III) |
| .dht | Datafile (Gauss) |
| .dia | Diagraph graphics (Computer Support Corporation) |
| .dib | Bitmap graphics (Device-Independent Bitmap) |
| .dic | Lotus Notes / Domino dictonary file |
| .dif | Database (VisiCalc) Output from Diff command - script for Patch command Text file (Data Interchange Format) |
| .dig | Digilink Format Sound Designer Audio File Text Document |
| .dip | Graphics |
| .dir | Dialing directory file (Procomm Plus) Directory file (VAX) Movie (MacroMind Director 4.x) |
| .dis | DATAIR data import specification file Distribution file (VAX Mail) Thesaurus (CorelDraw) |
| .diz | Description file (Description In Zip) |
| .dje | MattBatt iAM-player |
| .dkb | Raytraced graphics (DKBTrace) |
| .dl | Animation (Italian origin) |
| .dl_ | Compressed .dll file in an Install Archive |
| .dld | Data (Lotus 1-2-3) |
| .dlg | Dialog resource script file (MS Windows SDK) |
| .dll | Dynamic Link Library (Windows 3.x - OS/2) Export/import filter (CorelDRAW) |
| .dls | Setup (Norton Disklock) |
| .dmf | Delusion/XTracker digital music file Packed Amiga Disk Image |
| .dmg | Macintosh OS X Disk Image file |
| .dml | Medical Manager DML System Script |
| .dmo | Demo (Derive) |
| .dmp | Dump file (eg. screen or memory) |
| .dms | Compressed Amiga file archive created by DISKMASHER |
| .dna | Desktop DNA data storage file |
| .dnasym | Desktop DNA compiled application script |
| .dnax | Desktop DNA exclusion list (text) |
| .dne | Netica Bayes net file (Norsys Software Corp.) |
| .dng | Dungeon file |
| .dnl | DigitalWebBook Electronic Book netMod Modem Firmware Upgrade file |
| .do | ModelSim Filter Design HDL Coder |
| .doc | Document text file |
| .dog | Screen file (Laughing Dog Screen Maker) |
| .doh | Dependency information for .poh (Geoworks) |
| .dos | External command file (1st Reader) Network driver (eg. pkt_dis.dos) Text file containing DOS specific info |
| .dot | Line-type definition file (CorelDRAW) Template (Word for Windows) |
| .dox | Text file (MultiMate 4.0) |
| .doz | Description Out of Zip (VENDINFO) |
| .dp | Calendar file (Daily Planner) Data file (DataPhile) |
| .dpk | Delphi Package file |
| .dpp | Serif DrawPlus Drawing |
| .dpr | Default project- and state-related information (Borland C++) |
| .dps | DivX XP Skin |
| .dpt | Desktop DNA template |
| .dpx | Digital moving picture exchange format |
| .dra | Map Maker Pro GIS vector layer |
| .drs | Display Resource (WordPerfect for Win) |
| .drv | Device driver eg. for printer |
| .drw | Drawing (various) Vector graphics (Micrografx Designer) |
| .ds4 | Vector graphics (Micrografx Designer 4.0) |
| .dsa | DasyTec DASYLab file |
| .dsb | DasyTec DASYLab file |
| .dsc | Discard file (Oracle) |
| .dsd | Database (DataShaper) |
| .dsf | Micrografx Designer PC-TRUST Document Signer Delusion/XTracker Digital Sample |
| .dsk | Project desktop file (Borland C++ - Turbo Pascal) |
| .dsm | Digital sound module (DSI) |
| .dsn | Design (Object System Designer) |
| .dsp | Display parameters (Signature) Graphics display driver (Dr.Halo) MS Developer Studio Project |
| .dsr | Driver Resource (WordPerfect for Win) |
| .dss | Screensaver file (DCC) Sound (Digital Soup) |
| .dst | PC-RDist Distribution file Embroidery Machine Stitch file (VeePro) |
| .dsw | Desktop settings (Borland C++ 4.5) |
| .dsy | PC Draft Symbol Library
|
| .dt_ | Data fork of a Macintosh file (Mac-ette) |
| .dta | Data file (Turbo Pascal - PC-File - Stata) |
| .dtd | SGML Document Definition file |
| .dtf | Database file (PFS - Q&A) |
| .dtp | Document (Timeworks Publisher3) Publication (Publish-It!) |
| .dup | Duplicate Backup |
| .dus | Readiris font dictionary |
| .dvc | Data (Lotus 1-2-3) |
| .dvf | DV Studio Camcorder Graphics file |
| .dvi | Device Independent document (TeX) |
| .dvp | Desqview Program Information file (DESQview) Device parameter file (AutoCAD) |
| .dvr | DR-92 Manager file |
| .dvr-ms | files created by Stream Buffer Engine(SBE) |
| .dw2 | Drawing (DesignCAD for windows) |
| .dwc | Compressed file archive created by DWC (dwc-a501.exe) |
| .dwd | Davka Writer file DiamondWare Digitized file |
| .dwf | Autodesk WHIP! Drawing Web file MS WHIP autoCAD REader Drawing Web file |
| .dwg | Drawing (Drafix) Drawing database (AutoCAD) |
| .dwt | AutoCAD Template/Prototype file Macromedia Dreamweaver Template file Demon\'s World Game Texture file |
| .dwz | DVD movieFactory 3 |
| .dx | Text file (DEC WPS/DX format - DEC WPS Plus) |
| .dxf | Drawing Interchange File Format vector graphics (AutoCAD) |
| .dxn | Fax (Fujitsu dexNET) |
| .dxr | Dependable Strengths Administrator Resources Green Building Advisor file Macromedia Director Protected Movie file |
| .dyc | ICUII Videochat file |
| .dylib | Apple osx extension for lib |
| .dyn | Data (Lotus 1-2-3) |
| .dz | Dzip Compressed file |
| .eap | Enterprise Architect Project file |
| .ear | Java Enterprise Application Packaging Unit |
| .eas | Elite Visual Basic API Spy |
| .ebj | Error-checking object file (Geoworks) |
| .ebo | MS Reader Ebook Format |
| .ebp | Pocket PC WindowsCE Project file |
| .ecf | WinFax Office Add-in file |
| .eco | NetManage ECCO file |
| .ecw | Ensoniq Waveset Format EclipseCrossword Crossword Puzzle |
| .edb | MS Exchange Database ROOTS3 geneological data |
| .edl | Edit Decision List (management for video/film post production) |
| .eds | Ensoniq SQ80 disk image |
| .edt | Default settings (VAX Edt editor) |
| .eeb | Button bar for Equation Editor (WordPerfect for Win) |
| .efe | Ensoniq EPS file |
| .eft | High resolution screen font (ChiWriter) |
| .efx | Fax (Everex EFax) |
| .ega | EGA display font (Ventura Publisher) |
| .ek5 | SonarData Echoview file |
| .ek6 | SonarData Echoview file |
| .ekm | EXP: The Scientific Word Processor Macro |
| .el | Elisp source code file (Emacs lisp) |
| .elc | Compiled ELISP code (Emacs lisp) |
| .elm | MS FrontPage Theme-Pack file |
| .elt | Event list text file (Prosa) |
| .email | Outlook Express Mail Message |
| .emb | Everest Embedded Bank File |
| .emd | ABT Extended Module |
| .emf | Enchanced Metafile graphics |
| .eml | MS Outlook Express Electronic Mail |
| .emp | E-Music File Format |
| .ems | PC Tools Enhanced Menu System Config |
| .emu | Terminal emulation data (BITCOM) |
| .emx | Ensuredmail encrypted file/e-mail message |
| .enc | Encoded file - UUENCODEd file (Lotus 1-2-3 - uuexe515.exe) Music (Encore) |
| .end | Arrow-head definition file (CorelDRAW) |
| .eng | Dictionary engine (Sprint) Graphics (charting) (EnerGraphics) |
| .ens | EndNote Styles file |
| .env | Enveloper macro (WOPR) Environment file (WordPerfect for Win) |
| .eot | MS WEFT Embedded OpenType file |
| .epd | Publication (Express Publisher) |
| .epf | Encryption Protection (encrypted file format) The extension of the Entrust Profile files. |
| .epi | Document (Express Publisher) |
| .epp | EditPad Pro Project |
| .eps | Encapsulated PostScript vector graphics (Adobe Illustrator) Printer font (Epson - Xerox...) (Ventura Publisher) |
| .eqn | Equation (WordPerfect for Win) |
| .erd | Entity Relationship Diagram graphic file (Prosa) |
| .erm | Entity Relationship Diagram model file (Prosa) |
| .err | Error log Error messages for command line compilers |
| .esh | Extended Shell batch file |
| .esl | MS Visual FoxPro Distributable Support Library |
| .esp | Ventura file |
| .ess | EXP: The Scientific Word Processor Style Sheet |
| .est | MS Streets & Trips 2001 Trip file |
| .etf | Enriched Text file PolyEdit file |
| .eth | Document (Ethnograph 3) |
| .etx | Structure Enhanced (setext) text |
| .ev | SonarData Echoview file |
| .evi | SonarData Echoview file |
| .evl | SonarData Echoview file |
| .evr | SonarData Echoview file |
| .evt | Event log |
| .evy | Document (WordPerfect Envoy) |
| .ewd | Document (Express Publisher for Windows) |
| .ewl | EclipseCrossword Word List Microsoft Encarta Document |
| .ex_ | Compressed .EXE File in an Install Archive |
| .ex3 | Device driver (Harvard Graphics 3.0) |
| .exc | Rexx source code file (VM/CMS) Exclude file for Optimize (do not process) (QEMM) |
| .exd | Control Information Cache |
| .exe | Directly executable program (DOS) |
| .exm | Msdos executable, system-manager compliant (HP calculator) |
| .exp | ICQ Saved Chat file |
| .ext | Extension file (Norton Commander) |
| .exx | Intermediate file by MsgPut (IBM LinkWay) |
| .ezf | Fax (Calculus EZ-Fax) |
| .ezm | Text file |
| .ezp | Edify Electronic Workforce Backup Utility |
| .f | Fortran source code file Compressed file archive created by FREEZE |
| .f01 | Fax (perfectfax) |
| .f06 | Dos screen text font - height 6 pixels (fntcol13.zip) |
| .f07 | Dos screen text font - height 7 pixels (fntcol13.zip) |
| .f08 | Dos screen text font - height 8 pixels (fntcol13.zip) |
| .f09 | Dos screen text font - height 9 pixels (fntcol13.zip) |
| .f10 | Dos screen text font - height 10 pixels (fntcol13.zip) |
| .f11 | Dos screen text font - height 11 pixels (fntcol13.zip) |
| .f12 | Dos screen text font - height 12 pixels (fntcol13.zip) |
| .f13 | Dos screen text font - height 13 pixels (fntcol13.zip) |
| .f14 | Dos screen text font - height 14 pixels (fntcol13.zip) |
| .f16 | Dos screen text font - height 16 pixels (fntcol13.zip) |
| .f2 | FLASH BIOS file |
| .f2r | Linear module (music) (Farandole) |
| .f3r | Blocked module (music) (Farandole) |
| .f77 | Fortran 77 source code file |
| .f90 | Fortran file |
| .f96 | Fax (Frecom FAX96) |
| .fac | Face graphics |
| .faq | Frequently Asked Questions text file |
| .far | Farandoyle Tracker Music Module The Sims (Maxis) Archive file |
| .fav | MS Outlook Bar Shortcuts |
| .fax | Fax (raster graphics) (most Fax programs) |
| .fbc | FamilyTree Compressed backup file |
| .fbk | Navison Financials Backup FamilyTree Backup file |
| .fc | Spell checking dictionary (Harvard Graphics 2.0) |
| .fcd | Virtual CD-ROM FastCAD/EasyCAD Output Patton & Patton Flow Charting 3 file IsoBuster file |
| .fcm | Binary file patch file (forward compression)(jlpak10.zip) |
| .fcp | FLAMES Checkpoint Restart file (Ternion) |
| .fcs | Flow Cytometry Standard Format Fantasy Football League Organizer file RealProducer Pro Settings c-tree Server/Plus Data file Canon Zoom Browser EX file CD Trustee file Spectrum Server Log file |
| .fcw | Campaign Cartographer 2 file |
| .fd | Declaration file (MS Fortran) Field offsets for compiler (DataFlex) |
| .fdb | Art Explosion Portfolio Catalog file Legacy Family Tree Database Navison Financials Database |
| .fde | FLAMES Dataset Export file (Ternion) |
| .fdf | Adobe Acrobat Forms document |
| .fdr | Final Draft Document file Embroidery Design file |
| .fdw | Form (F3 Design and Mapping) |
| .feb | Button bar for Figure Editor (WordPerfect for Win) |
| .fes | Fabio Editing Software |
| .fev | FLAMES Environment Variable file (Ternion) |
| .ff | Outline font description (Agfa Compugraphics) |
| .ffa | MS Fast Find file |
| .fff | Fax (defFax) |
| .ffl | MS Fast Find file |
| .ffo | MS Fast Find file |
| .fft | Dca/FFT Final Form Text text file (DisplayWrite) |
| .ffx | Microsoft Fast Find file |
| .fgd | Folder Guard Data Half-life Modification Map Configuration file Digital Raster Graphic Metadata file |
| .fh3 | Vector graphics (Aldus FreeHand 3.x) |
| .fh4 | Vector graphics (Aldus FreeHand 4.x) |
| .fh5 | Freehand 5 |
| .fh6 | Freehand 6 |
| .fh7 | Freehand 7 |
| .fh8 | Macromedia Freehand 8 |
| .fh9 | Macromedia Freehand 9 |
| .fh10 | Macromedia Freehand 10 |
| .fi | Interface file (MS Fortran) |
| .fif | Fractal Image Format file |
| .fig | REND386/AVRIL Graphic Super Nintendo Game-console ROM Image |
| .fil | File template (Application Generator) Files list object file (dBASE Application Generator) Overlay (WordPerfect) |
| .fin | Print-formatted text file (Perfect Writer - Scribble - MINCE) |
| .fit | Fits graphics File Index Table (WindowsNT) |
| .fix | Patch file |
| .fky | Macro file (FoxPro) |
| .fla | Macromedia Flash |
| .flac | Free Lossless Audio Codec |
| .flb | Format library (Papyrus) |
| .flc | Animation (Autodesk Animator) |
| .fld | Folder (Charisma) |
| .flf | Corel Paradox Form Firehand Lightning Graphic Collection Navison Financials License file OS/2 Driver file |
| .fli | Tex font library (EmTeX) Animation (Autodesk Animator) |
| .flm | Film Roll (AutoCAD/AutoShade) |
| .flo | Micrografx FlowCharter |
| .flp | FlipAlbum file Fruityloops Saved file |
| .flt | Asymetrix Graphics Filter Support file CoolEdit Pro Filter Corel Graphic Filter FileMaker Filter FLIC Animation (DTA) Micrografx Picture Publisher Filter MS Graphics Filter MulitGen Open Flight file OS/2 Warp Filter Device Driver StarTrekker Music Module WinFlash Educator Flashcard Compiled Test file |
| .flv | Macromedia Flash Video file |
| .flx | Compiled binary (DataFlex) |
| .fm | Spreatsheet (FileMaker Pro) FrameMaker file |
| .fm1 | Spreadsheet (Lotus 1-2-3 release 2.x) |
| .fm3 | Device driver (Harvard Graphics 3.0) Spreadsheet (Lotus 1-2-3 release 3.x) |
| .fmb | File Manager Button bar (WordPerfect for Win) |
| .fmf | Font or icon file (IBM LinkWay) |
| .fmg | FreeMarkets Graphics Browser |
| .fmk | Makefile (Fortran PowerStation) |
| .fmo | Compiled format file (dBASE IV) |
| .fmp | FileMaker Pro Document FLAMES Model Prototype file (Ternion) |
| .fmt | Format file (dBASE IV - FoxPro - Clipper 5 - dBFast) Style sheet (Sprint) |
| .fmv | Frame Vector Metafile |
| .fmz | Form Z Program files (drawing program) |
| .fn3 | Font file (Harvard Graphics 3.0) |
| .fnt | Font file (many) |
| .fnx | Inactive font (Exact) |
| .fo1 | Font file (Borland Turbo C) |
| .fo2 | Font file (Borland Turbo C) |
| .fol | Folder of saved messages (1st Reader) |
| .fon | Dialing directory file (Telix) Font file (many - Windows 3.x font library) Log of all calls (Procomm Plus) |
| .for | Fortran source code file Form (WindowBase) |
| .fot | Installed Truetype font (Windows Font Installer) |
| .fp | Configuration file (FoxPro) |
| .fp3 | FileMaker Pro 3.0 and earlier files |
| .fp4 | FileMaker Pro 4.0 |
| .fp5 | FileMaker Pro 5.0 and later files |
| .fpb | FLAMES Playback file (Ternion) |
| .fpc | Catalog (FoxPro) |
| .fpk | JetForm FormFlow file |
| .fpr | FLAMES Prototype file (Ternion) |
| .fpt | Memo (FoxPro) |
| .fpw | Floorplan drawing (FloorPLAN plus for Windows) |
| .fpx | FlashPix Bitmap |
| .fqy | FLAMES FLARE Command file (Ternion) |
| .fr3 | Renamed dBASE III+ form file (dBASE IV) |
| .frc | FLAMES RECORD Output file; FLARE Input file (Ternion) |
| .fre | Creative Digital Blaster Digital VCR file Male Normal CT |
| .frf | Font (FontMonger) |
| .frg | Uncompiled report file (dBASE IV) |
| .frl | FormFlow file |
| .frm | Form (Visual Basic) Report file (dBASE IV - Clipper 5 - dBFast) Text (order form) |
| .fro | Compiled report file (dBASE IV) |
| .frp | Form (PerForm PRO Plus - FormFlow) |
| .frs | Screen Font Resource (WordPerfect for Win) |
| .frt | Report memo (FoxPro) |
| .frx | Report (FoxPro) |
| .fsc | FLAMES Scenario file (Ternion) |
| .fsh | EA Sports Game Graphic Editor file |
| .fsl | Form (Paradox for Windows) |
| .fsm | Farandoyle Sample format music |
| .fst | Linkable program (dBFast) |
| .fsx | Data (Lotus 1-2-3) |
| .fsy | Fileware\'s Filesync |
| .ftm | Font file (Micrografx) |
| .fts | Windows Help Full-Text Search Index file |
| .ftw | Family file FontTwister |
| .ftp | Configuration (FTP Software PC/TCP) |
| .fvt | Interlock Public Computer Utility |
| .fw | Database (FrameWork) |
| .fw2 | Database (Framework II) |
| .fw3 | Database (Framework III) |
| .fx | On-line guide (FastLynx) |
| .fxd | Phonebook (FAXit) |
| .fxm | WinFax/WinFax MiniViewer Fax |
| .fxo | Fax Image Document |
| .fxp | Compiled format (FoxPro) |
| .fxr | WinFax Received Document |
| .fxs | Fax Transmit Format graphics (WinFax) |
| .g | Data chart (APPLAUSE) |
| .g3f | Zetafax TIFF file (fine resolution) |
| .g3n | Zetafax TIFF file (normal resolution) |
| .g8 | Raw graphics (one byte per pixel) plane three (PicLab) |
| .gal | Corel Multimedia Manager Album |
| .gam | Fax (GammaFax) TADS 2.x Game file Baldur\'s Gate Game file Animated E-mail |
| .gat | Gator file |
| .gb | GameBoy ROM |
| .gba | Game Boy Advanced ROM GrabIt Batch files |
| .gbc | Game Boy COlor ROM |
| .gbd | Gator Banner file |
| .gbl | Global definitions (VAXTPU editor) |
| .gbr | GIMP Brush file Gerber Format file |
| .gbx | Gerber file |
| .gc1 | Lisp source code (Golden Common Lisp 1.1) |
| .gc3 | Lisp source code (Golden Common Lisp 3.1) |
| .gcd | Graphics |
| .gdb | Interbase Database Group Mail file |
| .gdf | Dictionary file (GEOS) |
| .gdr | Bitmap Font file (SymbianOS) |
| .ged | Editor\'s native file format (Arts & Letters) GEDCOM Family History file Graphic Environment Document Graphics editor file (EnerGraphics) |
| .gem | Vector graphics (GEM - Ventura Publisher) |
| .gen | Compiled template (dBASE Application Generator) Generated text (Ventura Publisher) Genius Family Tree |
| .geo | Geode (Geoworks) |
| .gfb | Compressed GIF image created by GIFBLAST (gifblast.exe) |
| .gft | Font (NeoPaint) |
| .gfx | Genigraphics Graphics Link Presentation Graphic format used by Allen Bradley SCADA Software (RSView Works) |
| .gho | Symantec Ghost Disk image file |
| .ghs | Lasertank High Scores Symantec Ghost Disk Image Span file |
| .gib | Chart (Graph-in-the-Box) |
| .gid | Windows Help index file |
| .gif | Graphics Interchange Format bitmap graphics (CompuShow) |
| .gig | Sound file |
| .giw | Presentation (Graph-in-the-Box for Windows) |
| .gl | Animation (GRASP GRAphical System for Presentation) |
| .glm | Datafile (Glim) |
| .gls | Datafile (Across) |
| .gly | Glossary (MS Word) |
| .gmf | CGM graphics (APPLAUSE) |
| .gmp | Geomorph tile map (SPX) |
| .gno | Genopro Genealogy Document file |
| .goc | Goc source code file (Geoworks) |
| .goh | Goc header file (Geoworks) |
| .gp | Geode parameter file (Geoworks Glue) |
| .gp3 | CCITT Group 3 file GuitarPro 3 |
| .gpd | VISUAL EPR Input Data for PARAMS.EXE |
| .gph | Graph (Lotus 1-2-3/G) |
| .gpk | Omnigo program package |
| .gr2 | Screen driver (Windows 3.x) |
| .gra | Datafile (SigmaPlot) |
| .grb | Ms-DOS Shell Monitor file (MS-DOS 5) |
| .grd | Gradebook Power file Map Projection Grid file |
| .grf | Graph file (Graph Plus - Charisma) |
| .grl | Matlab Graphic Format |
| .grp | Group file (Windows 3.x - Papyrus) Pictures group (PixBase) |
| .grx | File list (GetRight) |
| .gry | Raw GREY graphics |
| .gs1 | Presentation (GraphShow) |
| .gsd | Vector graphics (Professional Draw) GSplit file splitting utility (GDGsoft.com) |
| .gsm | Raw GSM 6.10 Audio Stream Sound file US Robotics modem file |
| .gsp | Geometer\'s Sketchpad Material file |
| .gsw | Worksheet (GraphShow) |
| .gtp | GuitarPro file |
| .gts | Genome Software Tempo Alarm Clock |
| .gup | Data (PopMail) |
| .gwi | Groupwise File |
| .gwp | Greetings WorkShop file |
| .gxd | General CADD Pro file GX-Reports file Jeol EX Spectrometer Data file |
| .gxl | Graphics library (Genus) |
| .gxt | GTA2 Game file |
| .gym | Sega Genesis Music Logged Format |
| .gz | Compressed file archive created by GZIP (GNU zip) |
| .h | Header file |
| .h! | On-line help file (Flambeaux Help! Display Engine) |
| .h++ | Header file (C++) |
| .h-- | Header file (Sphinx C--) |
| .ha | Compressed file archive created by HA (ha098.zip) |
| .ham | Image file |
| .hap | Compressed file archive created by HAP (hap303re.zip) |
| .hbk | Handbook (Mathcad) |
| .hbs | eBerry Transparent Animation - compressed bitmap files |
| .hcr | IBM HCD/HCM Production Configuration |
| .hdf | Hierarchical Data File graphics (SDSC Image Tools) Help file (Help Development Kit) |
| .hdl | Alternate download file listing (Procomm Plus) |
| .hdp | Magix Music/Video |
| .hdr | Pc-File+ Database header Datafile (Egret) Message header text (Procomm Plus - 1st Reader) |
| .hdw | Vector graphics (Harvard Draw) |
| .hdx | Help index (AutoCAD - Zortech C++) |
| .hex | Hex dump |
| .hfi | Hp Font Info file (GEM) |
| .hfx | HotFax file US Robotics Rapid Comm Voice Data file |
| .hgl | Hp Graphics Language graphics |
| .hh | C++ header file |
| .hhc | Table of Contents file TurboTax Contents file |
| .hhh | Precompiled header file (Power C) |
| .hhk | Help Workshop Index file |
| .hhp | Help information for remote users (Procomm Plus) |
| .hht | MS Messenger file |
| .hin | Molecule (HyperChem) |
| .his | Insight II Dynamics Trajectory History file Spy-CD CD Search Database file |
| .hlb | Help library (VAX) |
| .hlp | Help information |
| .hlz | Multi-Edit Packed Help file |
| .hm3 | Help & Manual 3 project Format |
| .hmm | Alternate Mail Read option menu (Procomm Plus) |
| .hnc | CNC program files Heidenhain (?) dialog |
| .hof | Hall Of Fame (game scores) |
| .hp8 | Ascii text HP Roman8 character set (NewWave Write) |
| .hpf | Hp LaserJet fonts (PageMaker) |
| .hpg | HPGL plotter file vector graphics (AutoCad - Harvard Graphics) |
| .hpi | Font information file (GEM) |
| .hpj | Help project (MS Help Compiler) |
| .hpk | Compressed file archive created by HPACK (hpack75.zip) |
| .hpm | Emm text (HP NewWave) Alternate Main menu for privileged users (Procomm Plus) |
| .hpp | C++ header file (Zortech C++) |
| .hqx | Compressed Macintosh ASCII archive created by BINHEX (xbin23.zip) |
| .hrf | Graphics (Hitachi Raster Format) |
| .hrm | Alternate Main menu for limited/normal users (Procomm Plus) |
| .hs2 | Monochrome image (Postering) |
| .hsi | Handmade Software Inc. graphics - almost JPEG (Image Alchemy) |
| .hst | History file (Procomm Plus) |
| .hta | Hypertext application |
| .htc | HTML Component (mechanism for implementing Dynamic HTML in script) |
| .htf | WebBase File |
| .hti | WebBase File |
| .htm | HyperText Markup Language document |
| .htr | Motion Analysis Software Skeletal file |
| .htt | Hypertext template |
| .htx | Hypertext file |
| .hus | Husqvarna Designer I Embroidery Machine Format |
| .hwd | Presentation (Hollywood) |
| .hxm | Alternate Protocol Selection menu for all users (Procomm Plus) |
| .hxx | C++ header file |
| .hy1 | Hyphenation algorithms (Ventura Publisher) |
| .hy2 | Hyphenation algorithms (Ventura Publisher) |
| .hyc | Data (WordPerfect) |
| .hyd | Hyphenation dictionary (WordPerfect for Win) |
| .hyp | Compressed file archive created by HYPER (hyper25.zip) |
| .hyt | VFSMOD Project output file |
| .i | Intermediate file (Borland C++ 4.5) |
| .iaf | MS Outlook 97 and 2000 e-mail account settings |
| .iax | Bitmap graphics (IBM Image Access eXecutive) |
| .ibm | Compressed file archive created by ARCHDOS (Internal IBM only) |
| .ica | Bitmap graphics (Image Object Content Architecture) |
| .icb | Bitmap graphics |
| .icc | Kodak Printer Image IronCAD Catalog |
| .icd | IronCAD 2D CAD file |
| .icl | icon library (ActivIcons, IconForge, ImageForge, ImageForge PRO) |
| .icm | Image Color Matching Profile file ICC Profile, Acer Monotor Drive |
| .icn | Icon source code file |
| .ico | Icon (Windows 3.x) |
| .id | Disk identification file |
| .idb | Database Used by Disassembler MS Developer Intermediate file |
| .ide | Project (Borland C++ 4.5) |
| .idf | ARTiSAN Real-time Studio ID file MIDI Instruments Drivers file |
| .idl | MS Visual C++ Interface Definition file OMG CORBA Interface Definition Language |
| .idw | Vector graphics (IntelliDraw) |
| .idx | Index (many - FoxPro) |
| .ies | Photometric file data |
| .ifd | Form (JetForm Design) |
| .iff | Interchange File Format bitmap graphics/sound (Amiga) Maxis The Sims Object file Philips CDI File Sun TAAC Image File Format (SDSC Image Tool) |
| .ifo | Saved graphic objects (ImageForge PRO) |
| .ifp | Script (KnowledgeMan) |
| .ifs | Fractal image compressed file (Yuvpak) System file (OS/2) hpfs.ifs |
| .igr | Intergraph SmartSketch Drawing |
| .igs | IGES-Format |
| .igx | iGrafx Process |
| .iif | QuickBooks for Windows Interchange file |
| .ilb | Data (Scream Tracker) |
| .ilk | Outline of program\'s format (MS ILink incremental linker) |
| .im30 | Sun Raster image file |
| .im8 | Sun raster graphics |
| .ima | Mirage vector graphics (EGO, Chart, Autumn) |
| .imb | IncrediMail file |
| .imc | IncrediMail file |
| .imf | ImageForge/IconForge saved filtered brushes(IconForge, ImageForge, ImageForge PRO) |
| .img | Bitmap graphics (Ventura Publisher - GEM Paint) |
| .imm | IncrediMail Trash |
| .imn | IncrediMail Notifier |
| .imp | Spreadsheet (Lotus Improv) Impaticized PowerPoint file |
| .imq | Image presentation (ImageQ) |
| .ims | Incredimail Graphic |
| .imv | Yahoo Instant Messenger IMVironment Impaticized Video format |
| .imw | Imageware Surfacer 3D CAD Surface Geometry IncrediMail Sound |
| .imz | Compressed floppy image |
| .in$ | Installation file (HP NewWave) |
| .in3 | Input device driver (Harvard Graphics 3.0) |
| .inb | Test script (Vermont HighTest) |
| .inc | Include file (several programming languages) |
| .ind | Index (dBASE IV) |
| .inf | Type 1 LaserJet font information file (soft font installers) Information text file (ASCII) Install script |
| .ini | Initialization file
|
| .ink | Pantone reference fills file (CorelDRAW) |
| .inl | MS Visual C++ Inline Function file |
| .inp | GIS Software Text Input file Oracle Source Code Self-Extracting Archive Utility Project |
| .ins | Data (WordPerfect) Installation script (1st Reader) Instrument music file (Adlib) |
| .int | Borland Interface Units Program saved in Internal (semi-compiled) format (Signature) |
| .inv | Rogue Spear Inventory file |
| .inx | Index (Foxbase) |
| .io | Compressed file archive created by CPIO |
| .iob | 3d graphics database in TDDD format |
| .ioc | Organizational chart (Instant ORGcharting!) |
| .ion | 4dos descript.ion file (file descriptions) |
| .ipd | InstallPROG 6 EDBS Install Database |
| .ipg | Mindjongg Format |
| .ipj | Impatica OnCue Project file |
| .ipl | Pantone Spot reference palette file (CorelDRAW) |
| .ipp | Help & Manual Proprietary Image |
| .ips | Game Patch file MENSI 3Dipsos |
| .ipx | IPIX AV file |
| .ipz | ICQ Skin Plus |
| .irs | Resource (WordPerfect) |
| .isd | Spelling Checker dictionary (RapidFile) |
| .ish | Compressed file archive created by ISH |
| .isk | Command file |
| .iso | Easy CD Creator Disc Image File List for CD-ROM InstallShield Uninstall file ISO Buster file ISO-9660 Table RichWin Vector Graphics (IsoDraw Illustration) |
| .isr | MS Streets & Trips Route file |
| .iss | InstallShield Response file ISS Graphic |
| .ist | Digitrakker Instrument File (n-FaCToR) |
| .isu | InstallShield Uninstall Script Easy CD Creator 4 Uninstall file Netscape file |
| .it | Settings (intalk) |
| .itf | Interface file (JPI TopSpeed Pascal) |
| .ith | InTether technology secured file |
| .iv | OpenInventor files (the successor to Inventor) |
| .iva | security video data file |
| .ivt | MS Infoviewer Title |
| .iw | Presentation flowchart (IconAuthor - HSC InterActive) |
| .iwa | Text file (IBM Writing Assistant) |
| .iwp | Text file (Wang) |
| .izt | Izl binary token file (IZL) |
| .j01 | File Extension from ADP Payroll Company |
| .jar | Java archive file |
| .jas | Graphics |
| .jav | Java source code file |
| .jbc | Jam Byte-Code Hex file BestCrypt File |
| .jbd | Datafile (SigmaScan) |
| .jbf | Paint Shop Pro browser file |
| .jbk | Juno Backup file |
| .jbr | Jasc Paint Shop Pro Brush |
| .jbx | Project file (Project Scheduler 4) |
| .jdt | Accelio Capture Classic Filler |
| .jef | Janome NH10000 Sewing Machine file |
| .jet | Fax (Hybrid JetFax) |
| .jff | Bitmap graphics (JPEG File Interchange Format) |
| .jfx | J2 Fax File |
| .jhtml | Dynamo Server Page |
| .jif | JPEG/JIFF Image Jeff\'s Image Format |
| .jmx | JMeter file |
| .jnb | Sigma Plot Workbook file |
| .jnl | Ingres Journal file |
| .job | Job file Task Scheduler Task Object AI Research file QuestVision Vector Graphics file |
| .jor | Journal file SQL |
| .jou | Journal backup (VAX Edt editor) |
| .jpc | Graphics (Japan PIC) |
| .jpe | JPEG image |
| .jpg | Bitmap graphics (Joint Photography Experts Group) |
| .jps | Stereo Image |
| .js | Microsoft Scripting Language "JScript" file extension |
| .jsd | eFAX Jet Suite Document |
| .jsh | Henter-Joyce, Inc. Jaws Script Header file |
| .jsp | Java Server page |
| .jtf | Fax (Hayes JT Fax) Bitmap graphics (JPEG Tagged Interchange Format) |
| .jtp | Jetform file |
| .jup | (New Planet Software) Code Crusader user\'s project preferences file |
| .jw | Text document (JustWrite) |
| .jwl | Library (JustWrite) |
| .jwp | Easy CD Creator Label file JWP Document |
| .jzz | Spreatsheet (Jazz) |
| .k4e | Karaoke 4 Everyone Player file |
| .kar | Midi file with karaoke word track |
| .kb | Keyboard script (Borland C++ 4.5) Program source (Knowledge Pro) |
| .kbd | Keyboard mapping (LocoScript - Signature - Procomm Plus) |
| .kbm | Keyboard mapping (Reflection 4.0) |
| .kcl | Lisp source code (Kyoto Common Lisp) |
| .kcp | Keychamp file |
| .kdc | Kodak Photo-Enhancer/Photogen file |
| .kex | Macro (KEDIT) |
| .key | Datafile (Forecast Pro) Keyboard macros Security file eg. Shareware Registration info |
| .kit | Raven Toolkit file |
| .kix | KixTart Script |
| .kma | Kodak Memory Book file |
| .kmp | Korg Trinity KeyMaP file |
| .kmx | Kaufman Mmail Warrior Mail Folder |
| .kos | MicroType Pro Document |
| .kpl | Kazaa Playlist KPL Source Code |
| .kpp | Toolpad (SmartPad) |
| .kps | Ibm KIPS bitmap graphics |
| .kqe | W32/Spybot.KQE Worm virus |
| .kqp | Konica Quality Picture |
| .krz | Kurzweil 2000 Sample |
| .ktk | Kutoka\'s Mia |
| .kyb | Keyboard mapping (FTP Software PC/TCP) |
| .l | Lex source code file Lisp source code file Linker directive file (WATCOM wlink) |
| .l01 | ARC Digitized Raster Graphics |
| .lab | Datafile (NCSS - SOLO) Mailing labels (Q+E for MS Excel) |
| .lat | Crossword Express Lattice file |
| .lay | Word chart layout (APPLAUSE) |
| .lbg | Label generator data (dBASE IV) |
| .lbl | Label (dBASE IV - Clipper 5 - dBFast) |
| .lbm | Bitmap graphics (DeluxePaint) Linear bitmap graphics (XLib) |
| .lbo | Compiled label (dBASE IV) |
| .lbr | Compressed file archive created by LU (lue220.arc) Display driver (Lotus 1-2-3) |
| .lbt | Label memo (FoxPro) |
| .lbx | Label (FoxPro) |
| .lcf | Linker Control File (Norton Guides compiler) |
| .lck | Lockfile (Paradox) |
| .lcl | Data (FTP Software PC/TCP) |
| .lcn | Lection (WordPerfect) |
| .lcs | Datafile (ACT! History Files) |
| .lcw | Spreadsheet (Lucid 3-D) |
| .ld | Long Distance codes file (Telix) |
| .ld1 | Overlay file (dBASE) |
| .ldb | Data (MS Access) |
| .ldf | Library definition file (Geoworks Glue) locking data file or (locking security file) IBM Works for OS/2 Filer Form Microsoft SQL Server Transaction Log File |
| .leg | Legacy Graphic Format |
| .les | Lesson (check *.cbt) |
| .let | Letter |
| .lev | Level file (NetHack 3.x) |
| .lex | Lexicon (dictionary) (many) |
| .lfa | LifeForm file |
| .lft | Laser printer font (ChiWriter) |
| .lg | Logo procedure definitions (LSRHS Logo) |
| .lgc | Program Use Log file |
| .lgo | Logo for header and footer (SuperFax) Startup logo code (Windows 3.x) |
| .lha | Compressed file archive created by LHA/LHARC (lha255b.exe) |
| .lhw | Compressed Amiga file archive created by LHWARP |
| .lib | Library file (several programming languages) |
| .lic | License file (Shareware) |
| .lid | WinDVD file Light Field Description file Dylan Library Interchange Description LabelVision Auto Incrementing Value file Maple V Setup file Scholar\'s Aid Backup file |
| .lif | Logical Interchange Format data file (Hewlett-Packard) Compressed file archive |
| .lim | Compressed file archive created by LIMIT (limit12.zip) |
| .lin | Line types (AutoCAD) |
| .lis | Listing (VAX) |
| .lit | MS Reader EBook file |
| .lix | Extend Simulation Library file Libronix DLS Resource (LLS 2.x Index) |
| .lj | Text file for HP LJ II printer |
| .lko | MS Outlook Express Linked Object |
| .ll3 | Laplink III related file (document) (LapLink III) |
| .lmt | RPG Maker map tree file |
| .lnd | 3D Landscape Data |
| .lng | Diablo II file NRG SDR Language file |
| .lnk | Linker response file (.RTLink) |
| .loc | MicroSim PCBoard Component Locations Report Suppose Locations file |
| .lod | Load file |
| .log | Log file |
| .lok | Encrypted and compressed archive format (FileWrangler, SecurDesk!, ZipWrangler) |
| .lpc | Printer driver (TEKO) |
| .lpd | Helix Nuts and Bolts File Avery Label Pro |
| .lpf | Lytec\'s Direct Electronic Medical Claims ClaimsDirect |
| .lpi | Live Pictures |
| .lpk | Licensed ActiveX Control for Internet Explorer. |
| .lrf | Linker response file (MS C/C++) |
| .lrs | Language Resource File (WordPerfect for Win) |
| .lsf | Streaming Audio/Video file Libronix DLS Resource |
| .lsl | Lotus Script Library |
| .lsp | Lisp source code file (Xlisp) |
| .lss | Spreadsheet (Legato) |
| .lst | Keyboard macro (1st Reader) List file (archive index - compiler listfile) Spool file (Oracle) |
| .ltm | Form (Lotus Forms) |
| .ltr | Letter |
| .lvp | Lucent Voice Player LView Pro |
| .lwa | LightWorks Archive Material/Scene file |
| .lwd | Text document (LotusWorks) |
| .lwo | NewTek Lightwave Object |
| .lwp | Lotus Wordpro 96/97 File |
| .lwz | MS Linguistically Enhanced Sound file |
| .lyr | DataCAD Layer file |
| .lzd | Difference file for binaries (Ldiff 1.20) |
| .lzh | Compressed file archive created by LHA/LHARC (lha255b.exe) |
| .lzs | Compressed file archive created by LARC (larc333.zip) |
| .lzw | Compressed Amiga file archive created by LHWARP |
| .lzx | Compressed file |
| .m | Function (program) (Matlab) Macro module (Brief) Standard package (Mathematica) |
| .m11 | Text file (MASS11) |
| .m2p | MPEG-2 Program Stream Format file |
| .m2v | MPEG-2 Video Only file |
| .m3 | Modula 3 source code file |
| .m3d | 3d animation macro |
| .m3u | Music Playlist (Winamp) |
| .m4 | M4 preprocessor file (unix) |
| .m4a | MPEG-4 Audio Layer |
| .m_u | Backup of boot sector, FAT and boot dir (MazeGold) |
| .ma3 | Macro (Harvard Graphics 3.0) |
| .mac | Bitmap graphics (Macintosh MacPaint) Macro |
| .mad | MS Access Module Shortcut |
| .mag | Woody Lynn\'s MAG graphics format (MPS Magro Paint System) |
| .mai | Mail (VAX) |
| .mak | Makefile Project file (Visual Basic) |
| .man | Command manual |
| .map | Color palette Format data (Micrografx Picture Publisher) Linker map file Map (Atlas MapMaker) Network map (AccView) |
| .mar | Assembly program (VAX Macro) |
| .mas | Smartmaster set (Freelance Graphics) |
| .mat | Data file (Matlab) |
| .max | Max source code file Microsoft Data Analyser View |
| .mb | Memo field values for database (Paradox) |
| .mbf | MS Money Backup file |
| .mbk | Medisoft for Windows Backup Multiple index file backup (dBASE IV) |
| .mbx | Mailbox (Eudora/Zerberus) |
| .mcc | Configuration file (Mathcad) |
| .mcd | Document (Mathcad) |
| .mcf | Mathcad font Meta Content Format file Master Command file TMPGEnc template |
| .mci | Mci command script (Media Control Interface) |
| .mcp | Application script (Capsule) Printer driver (Mathcad) |
| .mcr | DataCAD Keyboard macro file |
| .mcw | Text file (MacWrite II) |
| .mcx | Graphic file |
| .md | Compressed file archive created by MDCD (mdcd10.arc) |
| .md5 | Message Digest 5 (Easy MD5 Creator) |
| .mda | Data (MS Access) |
| .mdb | Database (MS Access) |
| .mdf | Accelio Capture Classic (JetForm) Filler I-deas Master Drafting Machine Data file Menu Definition file MS-SQL Master Database file |
| .mdl | Model (3D Design Plus) Spreadsheet (CA-Compete!) |
| .mdm | Modem definition (TELIX) |
| .mdmp | Microsoft Windows XP Trouble Report |
| .mdr | FaxTalk Modem Doctor Modem Report file |
| .mdt | Data table (MS ILink incremental linker) |
| .mdx | Multiple index file (dBASE IV) |
| .mdz | MS Access Wizard Template |
| .me | Usually ASCII text file READ.ME |
| .meb | Macro Editor bottom overflow file (WordPerfect Library) |
| .med | Macro Editor delete save (WordPerfect Library) Music (OctaMED) |
| .mem | Macro Editor macro (WordPerfect Library) Memory variable save file (Clipper - dBASE IV - FoxPro) |
| .meq | Macro Editor print queue file (WordPerfect Library) |
| .mer | Macro Editor resident area (WordPerfect Library) (vakioalue) |
| .mes | Macro Editor work space file (WordPerfect Library) Message |
| .met | Macro Editor top overflow file (WordPerfect Library) Document (Omnipage Pro) |
| .meu | Menu group (DOS Shell) |
| .mex | Mex file (executable command) (Matlab) Macro Editor expound file (WordPerfect Library) Mioplanet mex reader interactive file |
| .mf | Metafont text file |
| .mfx | ImageMAKER Fax Viewer folder file |
| .mgf | Font (Micrografx) |
| .mgp | MagicPoint presentation |
| .mhp | MS Home Publishing Project |
| .mht | MS MHTML Document |
| .mib | Snmp MIB file |
| .mic | Microsoft Image Composer file |
| .mid | Standard MIDI file (music synthetizers) |
| .mif | Maker Interchange Format (FrameMaker) |
| .mii | Datafile (MicroStat-II) |
| .mim | MIME file |
| .mio | Multimedia Interactive Object |
| .mip | Paint Shop Pro Multiple Image Print file |
| .mis | Delta Force Land Warrior Mission MagicInstall Installation Script Tribes 2 Game file |
| .mix | Object file (Power C) |
| .mk | Makefile |
| .mke | Makefile (MS Windows SDK) |
| .mki | Japanese graphics MAKIchan format (MagView 0.5) |
| .mks | Data (TACT) |
| .ml3 | Project (Milestones 3.x) |
| .mlb | Macro library file (Symphony) |
| .mlm | Novel Groupwise e-mail file |
| .mm | Text file (MultiMate Advantage II) |
| .mmc | Media Catalog MSoffice Media Content |
| .mmf | Mail message file (MS Mail) |
| .mml | Mail Meta Language |
| .mmm | Movie (RIFF RMMP format) (MacroMind Director 3.x) |
| .mmo | Memo writer file (RapidFile) |
| .mmp | Output video format from Bravado board |
| .mmx | Command & Conquer Red Alert 2 Map file Oracle Forms Compiled Menu |
| .mmz | MusicMatch Theme file |
| .mnd | Menu source (AutoCAD Menu Compiler) |
| .mng | Map (DeLorme Map\'n\'Go) |
| .mnt | Menu memo (FoxPro) |
| .mnu | Advanced macro (HP NewWave) Menu (AutoCAD Menu Compiler - Norton Commander - Signature) |
| .mnx | Compiled menu (AutoCAD) Menu (FoxPro) |
| .mny | Account book (MS Money) |
| .mob | Device definition (PEN Windows) |
| .mod | Modula-2 source code file (Clarion Modula-2) Windows kernel module Music (FastTracker - many) |
| .mol | MDL Molfile |
| .mon | Monitor description (ReadMail) |
| .mov | QuickTime Video Clip Apple QuickTime Audio AutoCAD AutoFlix Movie |
| .mp2 | Mpeg audio file (xing) |
| .mpa | MPEG Audio Stream, Layer I, II or III |
| .mpc | Calender file (MS Project) |
| .mpd | MS Project database file |
| .mpe | MPEG Movie Clip |
| .mpf | MS Design Gallery MosASCII Project Workspace file |
| .mpg | Mpeg animation |
| .mpm | Mathplan macro (WordPerfect Library) |
| .mpp | Project file (MS Project) CAD Drawing File |
| .mpq | Blizzard Game Data file |
| .mpr | Generated program (FoxPro) |
| .mps | Multimedia file Casio PDL Pocket Streets Map |
| .mpt | Bitmap graphics (Multipage TIFF) Template File (MS Project) |
| .mpv | View file (MS Project) |
| .mpw | MosASCII Project Workspace file |
| .mpx | Compiled menu program (FoxPro) |
| .mrb | Multiple Resolution Bitmap graphics (MS C/C++) |
| .mrc | MIRC Script file Bibliographic Data Format |
| .mrk | Informative Graphics markup file |
| .mrs | Macro Resource file (WordPerfect for Win) |
| .msc | MS C makefile |
| .msf | Multiple Sequence file |
| .msg | Message |
| .msi | Windows Installer file |
| .mso | Math Script Object file MS FrontPage file MS Word OLE Web Page Storage Stream |
| .msp | Bitmap graphics (Microsoft Paint) |
| .mspx | XML based Web Page |
| .mss | Manuscript text file (Perfect Writer - Scribble - MINCE - Jove) |
| .mst | ChemFinder Chemical Structure Index DATAIR Pension System Master file Minispecification file (Prosa) Setup script (MS Windows SDK) Visual Test Source file |
| .msv | Sony Memory Stick Format |
| .msw | Text file (MS Word) |
| .msx | Compressed CP/M file archive created by MSX |
| .mtd | Digital Sheet Music |
| .mth | Math file (Derive) |
| .mtm | Multitracker Module music |
| .mts | Viewpoint iPix file |
| .mtw | Datafile (Minitab) |
| .mtx | Temporary File often used by a browser or TWAIN device Viewpoint iPix file |
| .mu | Menu (Quattro Pro) |
| .mu3 | Myriad Music file (packed sounds & digital tracks) |
| .muf | ProtoMuck Multi User Forth Program |
| .mul | Ultima Online Game |
| .mus | MusicTime Sound file Myriad Music file |
| .mvb | Database MS Multimedia viewer file |
| .mvc | Music Collector Collection Manager file |
| .mvd | MicroDVD (DVD movie file) |
| .mvf | Stop frame file (AutoCAD AutoFlix) |
| .mvi | Movie command file (AutoCAD AutoFlix) |
| .mvw | Log file (Saber LAN) |
| .mwf | Animation (ProMotion) |
| .mwv | MovieWorks file |
| .mxd | GIS Project file |
| .mxe | Macro Express Mindex Effect Album |
| .MXF | Material eXchange Format for the interchange of audio-visual material (associated data and metadata). |
| .mxm | MS Project/Outlook Team Assign Task |
| .mxp | Macromedia Extension Manager ArcReader Published Map |
| .mxt | Data (MS C) |
| .myp | Presentation (MM Make Your Point) |
| .myr | Myriad Music file |
| .mys | Myst Saved Game |
| .myt | Myriad Tutorial file |
| .m | Function (program) (Matlab) Macro module (Brief) Standard package (Mathematica) |
| .m11 | Text file (MASS11) |
| .m2p | MPEG-2 Program Stream Format file |
| .m2v | MPEG-2 Video Only file |
| .m3 | Modula 3 source code file |
| .m3d | 3d animation macro |
| .m3u | Music Playlist (Winamp) |
| .m4 | M4 preprocessor file (unix) |
| .m_u | Backup of boot sector, FAT and boot dir (MazeGold) |
| .ma3 | Macro (Harvard Graphics 3.0) |
| .mac | Bitmap graphics (Macintosh MacPaint) Macro |
| .mad | MS Access Module Shortcut |
| .mag | Woody Lynn\'s MAG graphics format (MPS Magro Paint System) |
| .mai | Mail (VAX) |
| .mak | Makefile Project file (Visual Basic) |
| .man | Command manual |
| .map | Color palette Format data (Micrografx Picture Publisher) Linker map file Map (Atlas MapMaker) Network map (AccView) |
| .mar | Assembly program (VAX Macro) |
| .mas | Smartmaster set (Freelance Graphics) |
| .mat | Data file (Matlab) |
| .max | Max source code file Microsoft Data Analyser View |
| .mb | Memo field values for database (Paradox) |
| .mbf | MS Money Backup file |
| .mbk | Multiple index file backup (dBASE IV) |
| .mbx | Mailbox (Eudora/Zerberus) |
| .mcc | Configuration file (Mathcad) |
| .mcd | Document (Mathcad) |
| .mcf | Mathcad font Meta Content Format file Master Command file TMPGEnc template |
| .mci | Mci command script (Media Control Interface) |
| .mcp | Application script (Capsule) Printer driver (Mathcad) |
| .mcr | DataCAD Keyboard macro file |
| .mcw | Text file (MacWrite II) |
| .mcx | Graphic file |
| .md | Compressed file archive created by MDCD (mdcd10.arc) |
| .md5 | Message Digest 5 (Easy MD5 Creator) |
| .mda | Data (MS Access) |
| .mdb | Database (MS Access) |
| .mdf | Accelio Capture Classic (JetForm) Filler I-deas Master Drafting Machine Data file Menu Definition file MS-SQL Master Database file Alcohol 120% CD Image File |
| .mdl | Model (3D Design Plus) Spreadsheet (CA-Compete!) |
| .mdm | Modem definition (TELIX) |
| .mdr | FaxTalk Modem Doctor Modem Report file |
| .mdt | Data table (MS ILink incremental linker) |
| .mdx | Multiple index file (dBASE IV) |
| .mdz | MS Access Wizard Template |
| .me | Usually ASCII text file READ.ME |
| .meb | Macro Editor bottom overflow file (WordPerfect Library) |
| .med | Macro Editor delete save (WordPerfect Library) Music (OctaMED) |
| .mem | Macro Editor macro (WordPerfect Library) Memory variable save file (Clipper - dBASE IV - FoxPro) |
| .meq | Macro Editor print queue file (WordPerfect Library) |
| .mer | Macro Editor resident area (WordPerfect Library) (vakioalue) |
| .mes | Macro Editor work space file (WordPerfect Library) Message |
| .met | Document (Omnipage Pro) eDonkey2000 file Macro Editor top overflow file (WordPerfect Library) Presentation Manager Meta file |
| .meu | Menu group (DOS Shell) |
| .mex | Mex file (executable command) (Matlab) Macro Editor expound file (WordPerfect Library) Mioplanet mex reader interactive file |
| .mf | Metafont text file |
| .mgf | Font (Micrografx) |
| .mhp | MS Home Publishing Project |
| .mht | MS MHTML Document |
| .mib | Snmp MIB file |
| .mic | Microsoft Image Composer file |
| .mid | Standard MIDI file (music synthetizers) |
| .mif | Maker Interchange Format (FrameMaker) |
| .mii | Datafile (MicroStat-II) |
| .mim | MIME file |
| .mio | Multimedia Interactive Object |
| .mip | Paint Shop Pro Multiple Image Print file |
| .mis | Delta Force Land Warrior Mission MagicInstall Installation Script Tribes 2 Game file |
| .mix | Object file (Power C) |
| .mk | Makefile |
| .mke | Makefile (MS Windows SDK) |
| .mki | Japanese graphics MAKIchan format (MagView 0.5) |
| .mks | Data (TACT) |
| .ml3 | Project (Milestones 3.x) |
| .mlb | Macro library file (Symphony) |
| .mlm | Novel Groupwise e-mail file |
| .mm | Text file (MultiMate Advantage II) |
| .mmc | Media Catalog MSoffice Media Content |
| .mmd | Peristudio/PeriProducer file |
| .mmf | Mail message file (MS Mail) |
| .mml | Mail Meta Language |
| .mmm | Movie (RIFF RMMP format) (MacroMind Director 3.x) |
| .mmo | Memo writer file (RapidFile) |
| .mmp | Output video format from Bravado board |
| .mmx | Command & Conquer Red Alert 2 Map file Oracle Forms Compiled Menu |
| .mmz | MusicMatch Theme file |
| .mnd | Menu source (AutoCAD Menu Compiler) |
| .mng | Map (DeLorme Map\'n\'Go) |
| .mnt | Menu memo (FoxPro) |
| .mnu | Advanced macro (HP NewWave) Menu (AutoCAD Menu Compiler - Norton Commander - Signature) |
| .mnx | Compiled menu (AutoCAD) Menu (FoxPro) |
| .mny | Account book (MS Money) |
| .mob | Device definition (PEN Windows) |
| .mod | Modula-2 source code file (Clarion Modula-2) Windows kernel module Music (FastTracker - many) |
| .mol | MDL Molfile |
| .mon | Monitor description (ReadMail) |
| .mov | QuickTime Video Clip Apple QuickTime Audio AutoCAD AutoFlix Movie |
| .mp2 | Mpeg audio file (xing) |
| .mp3 | mp3PRO Audio file MPEG Audio Stream, Layer III SHARP MZ-series Emulator file Wrapster Wrapped file |
| .mp4 | MPEG-4 Video File |
| .mpc | Calender file (MS Project) |
| .mpd | MS Project database file |
| .mpe | MPEG Movie Clip |
| .mpf | MS Design Gallery MosASCII Project Workspace file |
| .mpg | Mpeg animation |
| .mpm | Mathplan macro (WordPerfect Library) |
| .mpp | Project file (MS Project) CAD Drawing File |
| .mpq | Blizzard Game Data file |
| .mpr | Generated program (FoxPro) |
| .mps | Multimedia File Casio PDL Pocket Streets Map |
| .mpt | Bitmap graphics (Multipage TIFF) Template File (MS Project) |
| .mpv | View file (MS Project) |
| .mpw | MosASCII Project Workspace file |
| .mpx | Compiled menu program (FoxPro) |
| .mrb | Multiple Resolution Bitmap graphics (MS C/C++) |
| .mrc | MIRC Script file Bibliographic Data Format |
| .mrk | Informative Graphics markup file |
| .mrs | Macro Resource file (WordPerfect for Win) |
| .msc | MS C makefile |
| .msd | MS Diagnostic Utility Report |
| .msf | Multiple Sequence file |
| .msg | Message |
| .msi | Windows Installer file |
| .msm | MultiSIM Circuit Diagram |
| .mso | Math Script Object file MS FrontPage file MS Word OLE Web Page Storage Stream |
| .msp | Bitmap graphics (Microsoft Paint) |
| .mspx | XML based Web Page |
| .mss | Manuscript text file (Perfect Writer - Scribble - MINCE - Jove) |
| .mst | ChemFinder Chemical Structure Index DATAIR Pension System Master file Minispecification file (Prosa) Setup script (MS Windows SDK) Visual Test Source file |
| .msv | Sony Memory Stick Format |
| .msw | Text file (MS Word) |
| .mswmm | Windows Movie Maker Project file |
| .msx | Compressed CP/M file archive created by MSX |
| .mtd | Digital Sheet Music |
| .mth | Math file (Derive) |
| .mtm | Multitracker Module music |
| .mts | Viewpoint iPix file |
| .mtw | Datafile (Minitab) |
| .mtx | Temporary File often used by a browser or TWAIN device Viewpoint iPix file |
| .mu | Menu (Quattro Pro) |
| .mu3 | Myriad Music file (packed sounds & digital tracks) |
| .muf | ProtoMuck Multi User Forth Program |
| .mul | Ultima Online Game |
| .mus | MusicTime Sound file Myriad Music file |
| .mvb | Database MS Multimedia viewer file |
| .mvc | Music Collector Collection Manager file |
| .mvd | MicroDVD (DVD movie file) |
| .mvf | Stop frame file (AutoCAD AutoFlix) |
| .mvi | Movie command file (AutoCAD AutoFlix) |
| .mvw | Log file (Saber LAN) |
| .mwf | Animation (ProMotion) |
| .mwp | Lotus Wordpro 97 Smartmaster file MegaWorks Pack file |
| .mwv | MovieWorks file |
| .mxd | GIS Project file |
| .mxe | Macro Express Mindex Effect Album |
| .mxf | Material eXchange Format |
| .mxm | MS Project/Outlook Team Assign Task |
| .mxp | Macromedia Extension Manager ArcReader Published Map |
| .mxt | Data (MS C) |
| .myp | Presentation (MM Make Your Point) |
| .myr | Myriad Music file |
| .mys | Myst Saved Game |
| .myt | Myriad Tutorial file |
| .na2 | Netscape Mail file |
| .nam | MS Office Name file |
| .nap | Naplps file (VideoShow) (EnerGraphics) |
| .nav | MSN Application Extension |
| .nb | Text file (Nota Bene) |
| .nc | Graphics (netcdf) Instructions for NC (Numerical Control) machine (CAMS) |
| .ncb | MS Developer Studio file |
| .ncc | Cnc (Computer Numeric Control) control file (CamView 3D) |
| .ncd | CoverDesigner Norton Change Directory support file (Norton Commander) NTI CD-Maker file |
| .ncf | Lotus Notes Internal Clipboard Netware Command file |
| .nch | Outlook Express folder file On Hold message/music file |
| .ndb | Network database (Intellicom - Compex) |
| .nde | Video format - various manufactures of surveillance camera systems |
| .ndx | Index file (dBASE II - III - IV - dBFast) |
| .neb | Nortec H.E.L.P. |
| .ned | MSN Application Extension |
| .neo | Raster graphics (Atari Neochrome) |
| .nes | Nintendo Entertainment System ROM Image |
| .net | Network configuration/info file |
| .new | New info |
| .nfo | Info file |
| .ng | Online documentation database (Norton Guide) |
| .ngf | Enterasys Networks NetSight generated format file |
| .ngg | Nokia Group Graphics |
| .nif | NetImmerse File Format |
| .nlm | Netware Loadable Module |
| .nls | Code Page National Language Support |
| .nlx | Form (FormWorx 3.0) |
| .nmd | SwordSearcher file |
| .nmi | SwordSearcher file |
| .nmo | Virtools Behavioral Objects |
| .nms | Numega Softice\'s Loader file Virtools Graphical Scripts |
| .nnb | newnovelist Story Outline |
| .nob | VersaPro Word Exchange file |
| .nol | Nokia Operator Logo |
| .not | Acrobat Spelling file ActiveNote Post-It-Notes |
| .now | Text file |
| .np | Project schedule (Nokia Planner) (Visual Planner 3.x) |
| .npa | ReliaSoft Weibull++ 6 |
| .npi | Source for DGEN.EXE intepreter (dBASE Application Generator) |
| .nra | Nero Audio-CD Compilation |
| .nrb | Nero CD-ROM Boot Compilation |
| .nrg | Norton Registration Entries Nero CD-Image IsoBuster file |
| .nri | Nero ISO CD-ROM compilation |
| .nrl | iManage file |
| .nsc | Noder file (Polish) Windows Media Station file |
| .nsf | Lotus Notes / Domino database |
| .nsi | Nullsoft Install System Script |
| .nst | Music (NoiseTracker) |
| .nt | Startup files (Windows NT) |
| .ntf | Lotus Notes / Domino template file |
| .ntp | Neato CD Labels |
| .ntr | Executable ASCII text file (strip header and rename) (netrun31.zip) |
| .nts | Tutorial (Norton) Executable ASCII text file (strip header and rename) (netsend1.zip) |
| .ntx | Index (Clipper 5) |
| .ntz | InVircible Directory Integrity Information |
| .nuf | Message for new users on their 1st call (Procomm Plus) |
| .nwc | Noteworthy Composer song file |
| .nws | Info text file (latest news) (ASCII) |
| .nxt | Sound (NeXT format) |
| .o | Object file (unix - Atari - GCC) |
| .o$$ | Outfile (Sprint) |
| .oaz | Fax (NetFax Manager) |
| .ob | Object cut/paste file (IBM LinkWay) |
| .obd | MS Office Binder |
| .obj | Object code (Intel Recolatable Object Module) |
| .obr | Object browser data file (Borland C++) |
| .obs | Script (ObjectScript) |
| .obv | Visual interface (ObjectScript) |
| .oca | Control Typelib Cache |
| .ocf | Object Craft File (Object Craft) |
| .ocm | AOL Advertising Control files Internet Odyssey 2 Update |
| .ocp | Advanced Art Studio Offline Commander Project file |
| .ocr | Incoming fax transcribed to text (FAXGrapper) |
| .oct | Radiance Octree Format |
| .ocx | OLE custom control |
| .odf | Open Document Interchange BattleZone Cartographers Guild file Star Trek Armada Ship/Structure Infomation |
| .odl | Type library source (Visual C++) |
| .oeb | Outlook Express Backup Wizard |
| .ofc | Open Financial Connectivity file |
| .ofd | Form definition (ObjectView) |
| .off | Object File Format vector graphics |
| .ofm | Adobe font |
| .oft | MS Outlook Item Template |
| .ofx | Olicom Fax Open Financial Exchange file |
| .ogg | Ogg Vorbis Codec Compressed WAV file |
| .ogm | Ogg Vorbis Compressed Video file |
| .okt | Music (Oktalizer) |
| .olb | Object library (VAX) |
| .old | Backup file |
| .ole | Object Linking and Embedding Object |
| .oli | Text file (Olivetti) |
| .omg | OpenMG Jukebox |
| .oms | Briggs Softworks Order Maven Macintosh MP3 Music Format Omega Downloader Configuration file |
| .ond | Lotus Notes-related file |
| .oom | Swap file (Shroom) |
| .opd | Omnipage file |
| .opf | Flip Album file |
| .opl | Psion Organiser Programming Language Source file |
| .opn | Active options (Exact) |
| .opt | Optimize support file (QEMM) |
| .opw | Organization chart (Org Plus for Windows) |
| .opx | Inactive options (Exact) |
| .or2 | Lotus Organizer 2 file |
| .or3 | Lotus Organizer 97 file |
| .or4 | Lotus Organizer file |
| .or5 | Lotus Organizer file |
| .ora | Parameter file (Oracle) |
| .org | Calendar file (Lotus Organizer) |
| .osd | Open Software Description file |
| .oss | MS Office Saved Search |
| .ost | Microsoft Outlook Offline file |
| .otf | Open Type Format |
| .otl | Outline font description (Z-Soft Type Foundry) |
| .otx | Text file (Olivetti Olitext Plus) |
| .out | Output file |
| .ov1 | Overlay file (part of program to be loaded when needed) |
| .ov2 | Overlay file (part of program to be loaded when needed) |
| .ovd | Datafile (ObjectVision) |
| .ovl | Overlay file (part of program to be loaded when needed) |
| .ovr | Overlay file (part of program to be loaded when needed) |
| .ovw | Cool Edit Pro Overviewfile Cubase .WAV File Image DIANA Overview file |
| .ows | Web Studio 2 Project file |
| .p | Pascal source code file Rea-C-Time application parameter file (ReaGeniX code generator) Picture file (APPLAUSE) |
| .p16 | Music (16 channels) (ProTracker Studio 16) |
| .p22 | Patch file (Patch22) |
| .p65 | Adobe Pagemaker v6.5 |
| .p7m | PKCS #7 MIME Message |
| .pa | Print Artist |
| .pa1 | Worktable (PageAhead) |
| .pab | Microsoft Outlook personal address book |
| .pac | Stad Image (graphics ?) Package (SBStudio II) |
| .pad | Keypad definition (Telemate) |
| .paf | PARIS audio format Personal Ancestral file |
| .pak | Compressed file archive created by PAK (pak251.exe) |
| .pal | Adobe Pagemaker Library Palette Color Palette Compressed File Tree Professional Palm Creator file |
| .pan | Printer-specific file (copy to coreldrw.ink) (CorelDRAW) |
| .par | Parts application (Digitalk PARTS) Parameter file (Fractint) Permanent output file (Windows 3.x) |
| .pas | Pascal source code file |
| .pat | Hatch patterns (AutoCAD - Photostyler) Vector fill files (CorelDRAW) |
| .pb | Fax (FAXability Plus) Phonebook (WinFax Pro) Setup file (PixBase) |
| .pb1 | Document (First Publisher for Windows) |
| .pba | Powerbasic BASIC source code (Genus) |
| .pbd | Phone book (FaxNOW! - Faxit) |
| .pbf | Turtle Beach Pinnacle Bank file Grand Prix Legends BMAP file PBook E-book Format (renamed ZIP file) Portable Bitmap Format file |
| .pbi | Powerbasic include file (Genus) Profiler Binary Input (MS Source Profiler) |
| .pbk | Microsoft XP Remote Access Phonebook file |
| .pbl | Powerbasic library (Genus) |
| .pbm | Pbm Portable Bit Map graphics Planar bitmap graphics (XLib) |
| .pbo | Profiler Binary Output (MS Source Profiler) |
| .pbr | Microsoft Publisher backup file |
| .pbt | Profiler Binary Table (MS Source Profiler) |
| .pc | Text file containing IBM PC specific info |
| .pc3 | Custom palette (Harvard Graphics 3.0) |
| .pc8 | Ascii text IBM8 character set (NewWave Write) |
| .pcb | Broderbund Print Shop Business Card Ivex Winboard Design file MS PowerPoint Application Data file Protel Technology Advanced PCB Design |
| .pcc | Cutout picture vector graphics (PC Paintbrush) |
| .pcd | Graphics (Kodak PhotoCD) |
| .pcf | Profiler Command File (MS Source Profiler) |
| .pch | Patch file Precompiled header (MS C/C++) |
| .pcj | Multimedia authoring tool graphics (IBM\'s Linkaway-Live) |
| .pck | Pickfile (Turbo Pascal) |
| .pcl | HP-PCL graphics data (HP Printer Control Language) |
| .pcm | Plasmacam CAD/CAM system file |
| .pcs | PICS Animation |
| .pct | Bitmap Graphic Honeywell GUS Display Builder Macintosh Quickdraw/PICT Drawing |
| .pcw | Text file (PC Write) |
| .pcx | Bitmap graphics (PC Paintbrush) |
| .pd | SynerGEE Stoner software files (compressible pipe flow program) |
| .pda | Bitmap graphics |
| .pdb | Data (TACT) |
| .pdc | Personal Database Creator file |
| .pdd | Adobe PhotoDeluxe Image |
| .pde | Principalm Data Extract files Processing Environment text files |
| .pdf | Adobe Portable Document Format Package Definition File Graphics file (ED-SCAN 24bit format) |
| .pdg | Printshop Deluxe files |
| .pdl | Project Description Language file (Borland C++ 4.5) |
| .pdr | Port or printer driver |
| .pds | Incredimail Source Code File Telsis HiCall Program File Pds graphics Planetary Data System Pldasm source code file (hardware assembly) Print Shop Graphic |
| .pdt | ProCite Primary Database VersaPro Compiled Block |
| .pdv | Printer driver (Paintbrush) |
| .pdw | Document (Professional Draw) |
| .pdx | Adobe Acrobat index file |
| .pe4 | Photo Explorer Thumbnail |
| .peb | Program Editor bottom overflow file (WordPerfect Library) |
| .ped | Program Editor delete save (WordPerfect Library) |
| .pem | Program Editor macro (WordPerfect Library) |
| .peq | Program Editor print queue file (WordPerfect Library) |
| .per | Program Editor resident area (WordPerfect Library) (vakioalue) |
| .pes | Program Editor work space file (WordPerfect Library) |
| .pet | Program Editor top overflow file (WordPerfect Library) |
| .pf | Monitor/printer profile file |
| .pfa | Type 3 font file (unhinted PostScript font) |
| .pfb | Type 1 font file |
| .pfc | Text file (First Choice) |
| .pfg | jEEPers file |
| .pfk | Programmable function keys (XTreePro) |
| .pfm | Windows Type 1 font metric file |
| .pfs | Database (PFS:FILE) - text file (PFS:Write) |
| .pft | Printer font (ChiWriter) |
| .pg | Page cut/paste file (IBM LinkWay) |
| .pgi | Printer Graphics File device driver (PGRAPH library) |
| .pgm | Portable Grayscale bitMap graphics Program (Signature) |
| .pgp | Support file (Pretty Good Privacy RSA System) |
| .pgs | Manual page (man4dos) |
| .ph | Optimized .goh file (Geoworks) Perl header file Phrase-table (MS C/C++) |
| .phb | NewLeaf PhraseBook ClustaW Tree file TreeView file PhoneB Phonebook file |
| .phn | Phone list (UltraFax - QmodemPro) |
| .php | MS Picture It! Publishing Project File PhotoParade PHP Script |
| .pho | Phone database (Metz Phone for Windows) |
| .phr | Phrases (LocoScript) |
| .pic | Pixar picture file (SDSC Image Tool) Bitmap graphics (Macintosh b&w PICT1 - color PICT2) Bitmap graphics (many eg. Lotus 1-2-3 - PC Paint) |
| .pif | Program Information File (Windows 3.x) Vector graphics GDF format (IBM mainframe computers) |
| .pip | Personalized menu and toolbar (MS Office) |
| .pit | Compressed Mac file archive created by PACKIT (unpackit.zoo) |
| .pix | Alias image file (SDSC Image Tool) |
| .pj64 | Project 64 game files |
| .pj | Project (CA-SuperProject) |
| .pjt | Project memo (FoxPro) |
| .pjx | Project (FoxPro) |
| .pk | Packed bitmap font bitmap file (TeX DVI drivers) |
| .pk3 | American McGee Alice Archive Return to Castle Wolfenstein file Heavy Metal: F.A.K.K.2 Archive Quake 3 Arena Archive (renamed zip file) |
| .pka | Compressed file archive created by PKARC |
| .pkd | Top Secret Crypto Gold file |
| .pkg | Installer script (Next) |
| .pkt | Fidonet packet |
| .pl | Perl source code file Prolog source code file Property List font metric file (TeX) Palette (Harvard Graphics) |
| .pl1 | Room plan (3D Home Architect) |
| .pl3 | Chart palette (Harvard Graphics 3.0) |
| .plb | Library (FoxPro) |
| .plc | Add-in file (functions - macros - applications) (Lotus 1-2-3) |
| .pll | Pre-linked library (Clipper 5) |
| .pln | Spreadsheet (WordPerfect for Win) |
| .plr | Descent Pilot file Player file |
| .pls | DisorderTracker2 Sample WinAmp MPEG PlayList file Shoutcast file MYOB Data file |
| .plt | AutoCAD HPGL Vector Graphic Plotter file Bentley\'s CAD MicroStation Driver Configuration for Plotting Clipper 5 Pre-linked Transfer file Gerber Sign-making Software file HP Graphics Language Infinity Game Engine Bitmap Graphic Lotus Organiser Paper Layout Definition Palette X-wing vs. Tie Fighter Pilot file |
| .ply | Data (PopMail) Presentation screen (Harvard Spotlight) |
| .pm | Bitmap graphics (Presentation Manager) |
| .pm3 | Document (PageMaker 3) |
| .pm4 | Document (PageMaker 4) |
| .pm5 | Document (PageMaker 5) |
| .pm6 | Document (Pagemaker 6) |
| .pmc | Graphics (A4TECH Scanner) |
| .pmd | Pagemaker file |
| .pme | Plazmic Media Engine file |
| .pmf | ArcReader GIS Mapping file |
| .pmm | Program file (Amaris BTX/2) |
| .pmo | Print Master Gold Text |
| .pmx | Pegasus Mail file |
| .pn3 | Printer device driver (Harvard Graphics 3.0) |
| .pnf | Precompiled Setup Information (Temporary file seen during installs) |
| .png | Bitmap graphics (Portable Network Graphics) |
| .pnm | Pbm Portable aNy Map (PNM) graphics |
| .pnt | Macintosh painting Qwk reader pointer file (MarkMail 2.x) |
| .poh | Optimized .goh file (Geoworks) |
| .pop | Messages index (PopMail) Pop-up menu object (dBASE Application Generator) |
| .pos | ProCite Output Styles QuickPOS IIF file |
| .pot | PowerPoint template |
| .pov | Raytraced scene description file (Persistence Of Vision) |
| .pow | Chord chart (PowerChords) |
| .pp | Compressed Amiga file archive created by POWERPACKER |
| .ppa | PowerPoint Add-in |
| .ppb | Button bar for Print Preview (WordPerfect for Win) |
| .ppd | PostScript Printer Description (Acrobat) |
| .ppf | Turtle Beach Pinnacle Program file Jasc Paint Shop Pro 7 Preset file Micrografx Picture Publisher file PlayStation Patch file |
| .ppg | MS PowerPoint Ppresentation Professor Franklin\'s Photo Print Gold |
| .ppl | Polaroidpaletteplus ColorKey device driver (Harvard Graphics 3.0) |
| .ppm | Portable Pixel Map graphics |
| .ppo | Pre-processor output (Clipper 5) |
| .ppp | Publication (PagePlus) |
| .pps | PowerPoint Slideshow Storyboard (Personal Producer) |
| .ppt | General file extension (PowerPoint) |
| .ppz | PowerPoint Packaged Presentation |
| .pqa | Palm Query Application File (database for wireless access) |
| .pqi | Power Quest Drive imaging |
| .pr2 | Presentation (Aldus Persuasion 2.x) |
| .pr2 | Printer driver (dBASE IV) |
| .pr3 | Postscript printer driver (dBASE IV) Presentation (Aldus Persuasion 3.x) |
| .prc | Palmpilot resource file Picture Gear Pocket |
| .prd | Printer driver (many) |
| .pre | Presentation (Freelance Graphics) Settings (Programmer\'s WorkBench - MS C/C++) |
| .prf | Pixel Run Format graphics (Improces - Fastgraph) Printer driver (dBASE IV) Profiler output |
| .prg | Program (Atari) Program source (dBASE IV - FoxPro - Clipper 5 - dBFast) |
| .pri | Printer definitions (LocoScript) |
| .prj | Project |
| .prm | Parameters MYOB Premier file extension |
| .prn | DataCAD Windows Printer file HP Printer Control Language PostScript file Printer Text file XYWrite Printer Driver |
| .pro | Prolog source code file Graphics profile file (DOS) |
| .prs | Printer Resource eg. fonts (WordPerfect for Win) Presentation (Harvard Graphics Win) Procedure (dBASE IV) |
| .prt | CADKEY Part file Printer Configuration Printer driver (Dr.Halo) Printer-formatted file Pro/ENGINEER Model file Process Revolution Template file SCEdit Part file Unigraphics Part file |
| .prx | Compiled program (FoxPro) |
| .prz | Freelance Graphics 97 file |
| .ps | Postscript file (text/graphics) (ASCII) |
| .psb | Pinnacle Sound Bank Project Scheduler Configuration file |
| .psd | Graphics (Photoshop 3.0) Design II for Windows |
| .pse | Bitmap graphics (IBM printer Page SEgment) |
| .psf | Outline PostScript printer font (ChiWriter) PrintShop Mail Favorites |
| .psi | PSION A-law Audio File extenstion for Pierresoft Adesign Image |
| .psm | Music (MASI - ProTracker) PrintShop Mail Symbol table of IDE (Turbo Pascal) |
| .psmdoc | PrintShop Mail |
| .psp | PaintShop Pro Image Procedure (Prodea Synergy) Project Scheduler Planning file |
| .psr | Project Scheduler Resource file |
| .pst | MS Outlook personal folder |
| .psw | WinXP Backup Password File |
| .pt3 | Device driver (Harvard Graphics 3.0) Template (PageMaker 3) |
| .pt4 | Template (PageMaker 4) |
| .ptb | Script (PubTech BatchWorks) |
| .ptm | Macro (PubTech BatchWorks) |
| .ptn | PaperPort Thumbnail Images |
| .ptp | Act! Modem Sync file |
| .ptr | Qwk reader pointer file (QMail) |
| .pts | Infinity Engine Game Tileset Halflife Map Creation Debug file |
| .ptx | Real Legal E-Transcript |
| .pub | Page template (MS Publisher) Public key ring file (Pretty Good Privacy RSA System) Publication (Ventura Publisher - 1st Publisher) |
| .put | Compressed file archive created by PUT (put334.zip) |
| .puz | Across Lite Crossword Puzzle Packed MS Publisher file |
| .pva | Hauppauge DVB-Software |
| .pvd | Script (Instalit) |
| .pvl | Library (Instalit) |
| .pvt | Local Fidonet pointlist |
| .pw | Text file (Professional Write) |
| .pwd | Pocket Word document AutoCAD Password file |
| .pwl | Password List |
| .pwp | Text document (Professional WritePlus) |
| .pwz | MS Powerpoint Wizard |
| .px | Primary database index (Paradox) |
| .pxl | Pocket Excel Spreadsheet |
| .pxv | Modelworks Project File used in JPad Pro and SitePad Pro |
| .py | Python script file |
| .pyc | Compiled PYTHON script file |
| .pyd | Binary Python Extension on Windows |
| .pyw | Python GUI Script on Windows |
| .pz2 | Curious Labs Poser Pose file |
| .pz3 | Curious Labs Poser Document |
| .pza | MGI PhotoSuite II/III/4 Album file |
| .pzd | Default settings (Pizazz Plus) |
| .pzl | Jigs@w Puzzle Lode Runner Game Puzzle Puzzle |
| .pzo | Overlay file (Pizazz Plus) |
| .pzp | MGI PhotoSuite II/III/4 Project file Palette (Pizazz Plus) |
| .pzs | Settings (Pizazz Plus) |
| .pzt | Transfer file (Pizazz Plus) |
| .pzx | Swap file (Pizazz Plus) |
| .q9q | BladePro Graphic Plugin file |
| .qad | QuickArt database |
| .qag | Quick Access Group (Norton Desktop) |
| .qap | Application (Omnis Quartz) |
| .qbb | QuickBooks for Windows Backup file |
| .qbe | Saved query (Query By Example) (dBASE IV - Quattro Pro) |
| .qbl | Business Lawyer Document |
| .qbo | Compiled query (dBASE IV) |
| .qbr | QuickBooks Report |
| .qbw | Spreadsheet (QuickBooks for Windows) |
| .qcn | Qualcomm Phonebook file |
| .qcp | Qualcomm PureVoice File Contains data frames generated by QCELP 13K vocoder |
| .qd0 | Data file - segment 10 (Omnis Quartz) |
| .qd1 | Data file - segment 1 (Omnis Quartz) |
| .qd2 | Data file - segment 2 (Omnis Quartz) |
| .qd3 | Data file - segment 3 (Omnis Quartz) |
| .qd4 | Data file - segment 4 (Omnis Quartz) |
| .qd5 | Data file - segment 5 (Omnis Quartz) |
| .qd6 | Data file - segment 6 (Omnis Quartz) |
| .qd7 | Data file - segment 7 (Omnis Quartz) |
| .qd8 | Data file - segment 8 (Omnis Quartz) |
| .qd9 | Data file - segment 9 (Omnis Quartz) |
| .qdat | Quicktime Installer Cache |
| .qdb | Quicken data file |
| .qdf | Quicken for Windows data file |
| .qdt | Quark Xpress Dictionary file Question Mark Designer Test file QuickBooks UK Accountancy Data file Quicken Data file |
| .qdv | Graphics (Steve Blackstock Giffer) |
| .qe4 | Kingpin Project file |
| .qef | Query file (Q+E for MS Excel) |
| .qel | Quicken Electronic Library file |
| .qfl | Quicken Family Lawyer file |
| .qfx | Fax (QuickLink) |
| .qic | Backup set for Microsoft Backup |
| .qif | Quicken Interchange Format Quicktime Image |
| .qix | NovaStar Backup file Quicken for DOS v.2 data file |
| .qlb | Quick library (MS C/C++) |
| .qlc | Data (PostScript help file) atmfonts.qlc |
| .qlf | Family Tree Maker Genealogy file |
| .qlp | Printer driver (QuickLink) |
| .qm4 | Options or services file (QMail 4.x Mail Door) |
| .qpr | Generated query program (FoxPro) Print queue device driver (OS/2) |
| .qpw | Quattro Pro Project file |
| .qpx | Compiled query program (FoxPro) |
| .qrp | Centura Report Builder file Liberty for Windows report file |
| .qrs | Equation Editor support file (WordPerfect for Win) |
| .qrt | Qrt ray tracing graphics |
| .qry | Query (dBASE IV) |
| .qsd | Quicken for Windows data file |
| .qst | Quake Spy Tab file |
| .qt | Quicktime movie (animation) |
| .qtc | Incite Media Assistant file |
| .qtk | Apple QuickTake file format for Windows |
| .qtp | QuickTime Preferences Astra Quicktest Report |
| .qts | Macintosh PICT image QuickTime image |
| .qtx | QuickTime image |
| .que | CuteFTP Queue file Task Scheduler Queue Object |
| .qvm | Quake file |
| .qvs | Casio Digital Camera file |
| .qwk | Qwk reader message file |
| .qxd | Document (QuarkXPress) |
| .qxl | Element library (QuarkXPress) |
| .qxt | Template file (QuarkXpress) |
| .r | Ratfor (FORTRAN preprosessor) file |
| .r33 | Train Simulator Game file |
| .r8 | Raw graphics (one byte per pixel) plane one (PicLab) |
| .r8p | Pcl 4 bitmap font file (Intellifont) |
| .ra | Music (RealAudio) |
| .ram | Ramfile (RealAudio) |
| .rar | Compressed file archive created by RAR (rar1_402.exe) |
| .ras | Sun Rasterfile graphics |
| .rat | Datafile (RATS) |
| .raw | Raw RGB 24-bit graphics |
| .rbf | Datafile (Rbase) |
| .rbn | Richard\'s Bridge Notation Real Sound file |
| .rbx | Format for playing RapidPlayer v3.0 ActiveX Control in Internet Explorer |
| .rc | Resource script (MS C/C++ - Borland C++) Configuration (emacs) |
| .rcg | Netscape newsgroup file (netsc.rcg) |
| .rcp | Recomposer\'s MIDI Sequencer Music file |
| .rcx | Lego Mindstorms Robotics Invention System |
| .rdb | TrueVector Rules database ZoneAlarm Rules database |
| .rdf | Compiled UIC source code (Geoworks UI Compiler) |
| .rdi | Device-independent bitmap file (RIFF RDIB format) |
| .rds | Ray Dream Studio file |
| .rdx | Datafile (Reflex) |
| .rec | Datafile (EpiInfo) Record file (Sprint) Recorded macro file (Windows 3.x) |
| .red | Path info (Clarion Modula-2) |
| .ref | Cross-reference |
| .reg | Ole Registration (Windows 3.x) Registration (Corel programs) |
| .rem | Remarks |
| .rep | Qwk reader reply file Report (Report Designer - CodeReporter - DataBoss) |
| .req | Request |
| .res | Compiled resource (MS C/C++ - Borland C++) Dbase resources (dBASE IV) |
| .rev | Revision file (Geoworks) |
| .rex | Rexx source code file |
| .rex | Report definition (Oracle) |
| .rez | Resource file |
| .rf | Sun raster graphics |
| .rft | Dca/RFT Revisable Format Text file (IBM DisplayWrite 4.0-5.1) |
| .rgb | Sgi RGB image file (SDSC Image Tool) |
| .rgi | RealArcade Game Installer |
| .rgp | RealArcade Game Package |
| .rgs | RealArcade Game Installer |
| .rgx | Symbol tables etc. info (ReaGeniX code generator) |
| .rh | Resource header file (Borland C++ 4.5) |
| .ri | Data (Lotus 1-2-3) |
| .rib | Graphics in Renderman format (3DReality) |
| .ric | Fax (Ricoh) |
| .rif | Riff bitmap graphics (Fractal Design Painter) |
| .rip | Graphics (Remote Access) |
| .rix | Bitmap graphics (ColorRIX VGA Paint) |
| .rl4 | Bitmap graphics |
| .rl8 | Bitmap graphics |
| .rla | Wavefront raster image file (SDSC Image Tool) |
| .rlb | Data (Harvard Graphics Win) hgw.rlb |
| .rlc | Graphics 1bit/pixel scanner output |
| .rle | Utah Run Length Encoded raster graphic (SDSC Image Tool) |
| .rlz | Realizer source code file (CA-Realizer) |
| .rmf | Rich Map Format |
| .rmi | Midi file (RIFF RMID format) |
| .rmj | Real Jukebox file |
| .rmk | Makefile (Clipper RMake) |
| .rmm | RealPlayer file |
| .rmr | Resume Maker file |
| .rmvb | Video file for Realplayer |
| .rmx | RealJukeBox MP3 file |
| .rn | Xpl program for Nota Bene users |
| .rnd | Rendering Slide (AutoCAD AutoShade) |
| .roi | Actuate ReportBlast file |
| .rno | Runoff file (VAX) |
| .rol | Fm music Adlib Music File (Roland) |
| .rpd | Database (RapidFile) RosaPro file RPV Printing System file |
| .rpl | Text document (Replica) |
| .rpm | RedHat Package Manager RealMedia Player file RunPaint Multicolor Graphic |
| .rps | Propellerhead Software Reason Song |
| .rpt | Report |
| .rrd | ERDAS Imagine file |
| .rs | Data file (Amiga Resource - Reassembler) |
| .rs_ | Resource fork of a Macintosh file (Mac-ette) |
| .rsb | Red Storm Image Format |
| .rsc | Resource file |
| .rsm | ReliaSoft MPC 3 RuneSword II Game WinWay Deluxe Resume file |
| .rsp | Response file |
| .rss | Rockwell Logix PLC file |
| .rst | ANSYS Results ReliaSoft BlockSim |
| .rsw | ReliaSoft BlockSim |
| .rtf | Rich Text Format text file (many - Windows Word) Windows Help file script |
| .rtl | Run Time Library (NU 7.0) Text file |
| .rtp | Rtpatch software update package data file |
| .rts | Runtime library file (CA-Realizer) |
| .rtx | Reliacast Audience Manager Turnstile Mobile Phone Ringtone |
| .rul | InstallShield |
| .rvp | MS Scan Configuration file |
| .rvw | Review |
| .rws | Resource Workshop data file (Borland C++) |
| .rwx | Script (RenderWare) |
| .rwz | MS Outlook Rules Wizard file |
| .rzr | in-sync Speed Razor Project file |
| .rzx | in-sync Speed Razor Project file |
| .s | Assembly source code file (unix) Scheme source code file |
| .s$$ | Temporary sort file (Sprint) |
| .s3m | Music (16 channels) (Scream Tracker 3.0) |
| .sac | Shared Asset Catalog (Adobe) |
| .saf | MusicMatch Jukebox Secure Audio file Safe File Encryption (Helix Software) Twelve Ghosts file |
| .sah | SETI@Home data file |
| .sal | Datafile (SORITEC) |
| .sam | Text file (Samna - Lotus Ami/Ami Pro) |
| .sar | Compressed file archive created by SAR (sar1.zip) |
| .sav | Backup file (saved file) Configuration Saved game situation (eg. NetHack) |
| .sb | Audio file (signed byte) |
| .sbc | Sagebrush Corporation Spectrum CIRC/CAT Report |
| .sbd | Storyboard (Storyboard Editor) |
| .sbi | Sound Blaster Instrument file (Creative Labs) |
| .sbp | Dml program (Superbase 4) |
| .sbr | Support file (Source Browser) |
| .sbs | SWAT HRU Output file |
| .sbt | Notes related to record (Suberbase 4 Windows) |
| .sc | Pal script (Paradox) Display driver (Framework II) |
| .sc3 | Renamed dBASE III screen mask file (dBASE IV) Screen device driver (Harvard Graphics 3.0) |
| .sca | Datafile (SCA) |
| .scc | Text file |
| .scd | Scodl Scan Conversion Object Description Language graphics |
| .scf | Multimedia show (ScoreMaker) Spelling checker configuration (Symphony) |
| .sch | Project schedule (Schedule Publisher) Schematics file (ORCAD) |
| .sci | System Configuration Information Fax (SciFax) |
| .scm | Scheme source code file SchematicMaker file |
| .scn | Screen file (Kermit) |
| .sco | High score |
| .scp | Script (BITCOM) |
| .scr | Debug source code file (DOS Debug) Screen - screen snapshot (dBASE IV - Procomm Plus) Screen font (LocoScript) Screen saver (Windows 3.x) Script (Kermit - 1st Reader) |
| .sct | Screen memo (FoxPro) |
| .scx | Bitmap graphics (ColorRIX) Chart (Stanford Chart) Screen (FoxPro) |
| .scy | Security file (ReaGeniX) |
| .sda | Fidonet\'s Software Distribution Network file archive description |
| .sdc | StarOffice Spreadsheet |
| .sdd | StarOffice Presentation |
| .sdf | System Data Format file (fixed lenght ASCII text) |
| .sdi | Software Distribution Network Info file |
| .sdn | Software Distribution Network compressd file archive (pak251.exe) |
| .sdr | SmartDraw file |
| .sdt | SmartDraw Template Dungeon Keeper 2 Archive Theme Park World Archive |
| .sdu | Edwards Systems Technology file |
| .sdw | StarOffice Text Raw Signed DWord Data Lotus WordPro Graphic |
| .sea | Self-Extracting compressed Macintosh file Archive |
| .sec | CyberPaint animation file (sequence) Secret key ring file (Pretty Good Privacy RSA System) Secured animation file (Disney Animation Studio) |
| .sep | Printer separator page |
| .seq | Atari animation file Sequential Instruction File (Bubble Chamber) |
| .ses | Session info (Clarion Modula-2) |
| .set | Configuration (1st Reader) Driver sets created by Install (Symphony) Setup options file |
| .sf | Ircam Sound File (CSound package - MixView sound sample editor) Wps attribute storage (OS/2 WorkPlace Shell) wp_root.sf |
| .sff | Fritz Fax-Print file Stage Scene file Structured Fax Format |
| .sfi | Graphics (SIS Framegrabber) Printer font (HP LaserJet landscape) (Ventura Publisher) |
| .sfl | Pcl 4 bitmap font (landscape) (Intellifont) (Ventura Publisher) |
| .sfn | Font (SPX) |
| .sfp | Pcl 4 bitmap font (portrait) (Intellifont) (Ventura Publisher) |
| .sfs | Pcl 5 scalable font file (Intellifont) |
| .sft | Screen font (ChiWriter) |
| .sfv | QuickSFV/WinSFV Checksum file Simple File Verification (Easy SFV Creator) |
| .sfw | Seattle Film Works file |
| .sg1 | Graphics (Stanford Graphics) |
| .sgf | Document with graphics (Starwriter) Smart Game Format Sonique Skin |
| .sgi | Graphics (IRIS - Silicon Graphics) |
| .sgm | Run-Time Help Files Structured Generalized Markup SoftQuad XMetaL File |
| .sgn | Sierra Print Artist Sign |
| .sgp | Statistics (STATGRAPHICS Plus) |
| .sgt | Save/get keyboard macro (Signature) |
| .sh | Unix shell script Unix ASCII file archive created by SHAR (unshar.zip) |
| .sh3 | Presentation (Harvard Graphics 3.0) |
| .shb | Background (CorelShow) |
| .shd | Print Spooler Shadow file |
| .shg | Segmented-graphics bitmap |
| .shk | Compressed Apple II file archive created by SHRINKIT |
| .shm | Shell macro (WordPerfect Library) |
| .shn | Shorten audio compression file |
| .shp | Shape file and source file for text fonts (AutoCAD) |
| .shr | Unix ASCII file archive created by SHAR (unshar.zip) |
| .shs | Microsoft Word or Excel scrap file which is created when you drag and drop selected text |
| .shtml | HTML File with Server Side |
| .shw | Presentation (Harvard Graphics 2.0 - CorelShow) Slide show (WordPerfect Presentations) |
| .shx | Shape entities (AutoCAD) |
| .sid | Commodore64 Music file LizardTech MrSID Photo |
| .sif | Setup Installation Files info (Windows NT Setup) |
| .sig | Current program settings (Signature) PrintShop Sign file Signature file (PopMail) |
| .sik | Backup file (Sicherungskopie) (MS Word) |
| .sim | Aurora PC Finder 2002C PowerDVD file Simulation (various) |
| .sis | SymbianOS Installer file |
| .sit | Compressed Macintosh archive created by STUFFIT (unsit30.zip) |
| .skb | SketchUp software file (3D Design Tool) |
| .skf | Autosketch file |
| .skn | Interface skins images (FileWrangler, SecurDesk!, SecurDesk! LV, ZipWrangler) |
| .skp | Sketchup software component (3D Design Tool) |
| .sl | S-Lang source code file |
| .slb | Slide library (AutoCAD) |
| .slc | Compiled SALT script (Telix) |
| .sld | Slide (AutoCAD) |
| .sli | Slide (MAGICorp Slide Service) |
| .slk | Sylk Symbolic Link format data file (MultiPlan) |
| .sll | Sound data file |
| .slt | Salt Script Application Language for Telix script source (Telix) |
| .sm | Smalltalk source code file Maillist (SoftSpoken Mailer) Script (ScriptMaker) Text file (Samna Word) |
| .smc | Super Nintendo Game-console ROM Image |
| .smd | StarOffice Mail |
| .smf | Fax (SMARTFAX) |
| .smi | RealPlay SMIL file Self Mounting Image file |
| .smk | Compressed File (Smacker) |
| .smm | Macro (Ami Pro) |
| .smp | Sample (sound file) |
| .sms | Microsoft Package Definition file Sega Master System Emulator |
| .smt | Text file (Smart Ware II) |
| .snd | Digitized sound file (Macintosh/ATARI/PC) |
| .sng | Song (midi sound) (Midisoft Studio - Prism) |
| .snm | Netscape mail |
| .sno | Snobol4 source code file |
| .snp | CoffeeCup HTML Editor Snippet Computer Eyes Video Output Microsoft Access Snapshop Snapview Shapshot |
| .snx | Mirage Microdrive Snapshot Extended Version Second Nature Software Graphic StarCraft Saved file |
| .sol | Solution eg. game walkthroughs |
| .som | Network serial numbers (Quattro Pro) Sort information (Paradox) |
| .son | Song (SBStudio II) |
| .sou | Sound data (sound tool) |
| .sp | Compressed file archive created by SPLINT (unix) |
| .spa | Macromedia FutureSplash file Smart Protocol Analyzer Real Time Communication Data SmartPA Saved Capture file Thermo Nicolet OMNIC file |
| .spc | Program (MS Multiplan) Temporary file (WordPerfect for Win) Super Nintendo SPC700 sound file |
| .spd | Scalable font (Speedo) (Harvard Graphics 3.0) |
| .spf | Slide presentation file (EnerGraphics) |
| .spg | Glossary (Sprint) |
| .spi | Graphics (Siemens and Philips scanner) |
| .spl | Compressed file archive created by SPLINT (splint.arc) Customized printer driver (Sprint) Personal spell dictionary (Signature) Print spooling file (Windows 3.x) Sample |
| .spm | Data (WordPerfect) wp{wp}.spm |
| .spo | Statistical Program (SPSS) |
| .spp | Printer file (Sprint) |
| .spr | Document letter (Sprint) Genarated screen program (FoxPro) Sprite |
| .sps | Spssx source code file (VAX/VMS) Screen driver (Sprint) |
| .spt | Spitbol source code file Support file (MITAC disk/system management utility pack) |
| .spw | Worksheet (SigmaPlot) |
| .spx | Compiled screen program (FoxPro) |
| .sql | SQL report or query |
| .sqz | Compressed file archive created by SQUEEZE (sqz1083e.exe) |
| .src | Source (DataFlex) |
| .srf | Sun Raster File graphics |
| .srp | Script (QuickLink) |
| .srt | BSplayer Subtitle file Omron CX-Supervisor SDR99 Speech Recognition Task Speech Recogniser Transcript |
| .ss | Bitmap graphics (Splash) |
| .ssa | Subtitles |
| .ssb | SmartSync Pro |
| .ssd | Datafile (SAS/PC) |
| .ssf | Enable Spreadsheet file |
| .ssm | RealPlayer Standard Streaming Metafile |
| .ssp | Datafile (SAS Transport) |
| .st | Smalltalk source code file (Little Smalltalk) Instrument library (Scream Tracker) Stamp (NeoPaint) |
| .st3 | MIDI Karaoke file |
| .sta | Saved state (Reflection 4.0) Stack (Spinmaker Plus) |
| .stb | Stub library (Genus GX Kernel) |
| .std | State Transition Diagram graphic file (Prosa) Standard (something..) (LocoScript) |
| .stf | Compressed file archive created by SHRINKTOFIT |
| .stg | ActiveSync (Microsoft) |
| .stm | State Transition Diagram model file (Prosa) Music (Scream Tracker) |
| .stn | ArcView Geocoding Standardization file STiNG file |
| .sto | Pascal stub OBJ file (Genus GX Kernel) |
| .stp | PageKeeper Packed Storage file DART Pro 98 system settings AP203 Step file |
| .str | Structure list object file (dBASE Application Generator) |
| .sts | Project status info (MS C/C++) Song format (Scream Tracker) |
| .stt | Automap Template SureThing CD Labeler Template file |
| .stu | Tarantella Enterprise 3 3270 Emulator Style file xyALGEBRA file |
| .stw | Data file (SmartTerm for Windows) |
| .stx | Electronic book (SmarText) Tax form (CA-Simply Tax) |
| .sty | Style library or sheet (many text and graphics programs) |
| .sub | CloneCd related file |
| .sui | Suit library (Simple User Interface Toolkit) |
| .sum | Summary |
| .sun | Sun rasterfile graphics |
| .sup | Supplementary dictionary (WordPerfect for Win) |
| .sv4 | RollerCoaster Tycoon Saved Game |
| .svd | Autosave file for document (MS Word) |
| .svg | Autosave file for glossary (MS Word) |
| .svp | WISCO Survey Power Sonique Visual Plugin file SwiftView Command file |
| .svs | Autosave file for style sheet (MS Word) |
| .sw | Audio file (signed word) |
| .swd | Storybook file Sabiston Textbook |
| .swf | ShockWave Flash object |
| .swg | Swag packet (SWAG Reader) |
| .swi | Swish Data file |
| .swk | Swapkeys Keyboard File |
| .swp | Document backup (Sprint) Swap file (DOS) |
| .sxw | OpenOffice.org Writer 6.0 text file Staroffice Word Document |
| .sy1 | Smartpix symbol library (Ami Pro) |
| .sy3 | Symbol file (Harvard Graphics 3.0) |
| .syd | Backup of startup files created by QEMM (?) autoexec.syd |
| .sym | Precompiled headers (Borland C++) Program symbol table (many compilers and linkers) Symbol file (Harvard Graphics 2.0) |
| .syn | Sdsc Synu image file (SDSC Image Tool) Synonym file (MS Word 5) |
| .sys | Datafile (SYGRAPH - SYSTAT - SPSS/PC) System file - device driver or hardware configuration info (DOS) |
| .syw | Graphics symbols (Harvard Graphics Win) |
| .t | Tads source Tape Archive (tar) without compression Tester symbol table (ReaGeniX code generator) |
| .t44 | Temporary file for Sort or Index (dBASE IV) |
| .t64 | Program (C64S emulator) |
| .tab | Guitar Tablature file MapInfo Table Diabetes Mentor file |
| .tag | Query tag name (DataFlex) |
| .tah | Turbo Assembler Help file (Borland C++) |
| .tal | Text illustration (TypeAlign) |
| .tao | IsoBuster file |
| .tar | Compressed file archive created by TAR (pax2exe.zoo) |
| .tax | TurboTax file |
| .taz | Compressed ASCII file archive created by TAR and COMPRESS (.tar.Z) |
| .tb1 | Font file (Borland Turbo C) |
| .tb2 | Font file (Borland Turbo C) |
| .tbf | Fax (Imavox TurboFax) |
| .tbh | Mah Jongg for Windows Tile Set |
| .tbk | Memo backup (dBASE IV - FoxPro) Toolbook (Asymetrix ToolBook) |
| .tbl | Graphics (native format) (PageMaker TableEditor) Table of values (OS/2) |
| .tbs | Text elements ?? (Textbausteine) (MS Word) |
| .tbx | Table (Project Scheduler 4) |
| .tc | Configuration (Turbo C - Borland C++) |
| .tch | Turbo C Help file (Borland C++) |
| .tcl | Tool Command Language source code (Swat) |
| .tcw | Drawing (TurboCAD for Windows) |
| .td | Configuration file (Turbo Debugger for DOS) |
| .td0 | Disk image file (Teledisk) |
| .td2 | Configuration file (Turbo Debugger for Win32) |
| .tdb | Database (TACT) |
| .tdf | Font (TheDraw) Typeface definition file (Speedo) |
| .tdh | Help file (Turbo Debugger) |
| .tdk | Keystroke recording file (Turbo Debugger) |
| .tds | Symbol table (Turbo Debugger) |
| .tdt | ASCII Data File in CSV Format Daylight Fingerprint Data file |
| .tdw | Configuration file (Turbo Debugger for Windows) |
| .tee | TeeChart Office graphic |
| .tef | Fax (Relisys TEFAX) |
| .tel | Host file (Telnet) |
| .tem | Turbo Editor Macro Language script (Borland C++) Input template (IconAuthor) |
| .tex | Tex text file (Scientific Word) Datasheet (Idealist) |
| .tf | Configuration (Turbo Profiler) Configuration (TinyFugue) |
| .tfa | Area file (Turbo Profiler) |
| .tfc | Catalogue file (Tobi\'s Floppy Cataloguer) |
| .tfh | Help file (Turbo Profiler) |
| .tfm | Tex Font Metric file (TeX) Tagged font metric file (Intellifont) |
| .tfs | Statistics (Turbo Profiler) |
| .tfw | ArcView World File For TIF Image Digital Raster Graphic World |
| .tg1 | Project file (On Target) |
| .tga | Truevision Targa bitmap graphics |
| .tgz | Compressed file archive created by TAR and GNUzip (.tar.gz) |
| .thb | KinuPix Skin |
| .thd | Thread |
| .thm | Microsoft Clipart Gallery database Serif DrawPlus Theme |
| .thn | Graphics Workshop for Windows Thumbnail |
| .ths | Thesaurus dictionary (WordPerfect for Win) |
| .tif | Tagged Image File Format bitmap graphics (PageMaker - CorelDRAW) |
| .til | Fuzzy logic knowledge base (Togai InfraLogic Fuzzy-C Compiler) |
| .tim | Playstation Game Texture Image The Incredible Machine Level File |
| .tis | Tile set (MahJongg 3.0) |
| .tix | ASA for UNIX Terminfo Extension file DivX file Hybrid Graphics file Tix Widgets |
| .tjl | Backup file (VAXTPU editor) |
| .tlb | Reference table (Bubble Chamber) Text library (VAX) |
| .tlb | Type library (Visual C++) |
| .tlc | Compiled Tool Command Language source code (Swat) |
| .tlp | Project (TimeLine) |
| .tlt | Trellix Web Design file |
| .tmb | Timbuktu Pro Connection Document |
| .tmd | Document (TextMaker) |
| .tmf | Tagged Font Metric file (WordPerfect for Win) |
| .tmo | Ztg global optimizer default output file (Zortech C++) |
| .tmp | Temporary file |
| .tmq | TestMaster file |
| .tms | Script (Telemate) |
| .tmv | Template (TextMaker) |
| .toc | Table Of Contents |
| .tol | Kodak Photoenhancer |
| .tos | Self-extracting file archive (Atari ST) |
| .tp | Configuration (Turbo Pascal) Session-state file (Turbo Profiler) |
| .tp3 | Template (Harvard Graphics 3.0) |
| .tpb | Downloadable PCL Soft font file backup (HiJaak) |
| .tpf | Downloadable PCL Soft font file (HiJaak) |
| .tph | Help file (Turbo Pascal) |
| .tpl | Resident units library (Turbo Pascal) Template (Harvard Graphics 2.0) |
| .tpp | Protected Mode Units (Borland Pascal 7.0) |
| .tps | Clarion for Windows data file |
| .tpu | Turbo Pascal Unit (BGI) (Turbo Pascal) Command file (VAXTPU editor) |
| .tpw | Session-state file (Turbo Profiler for Windows) Turbo Pascal Unit (BGI) (Turbo Pascal for Windows) |
| .tpz | Compressed file archive created by TAR and GNUzip (.tar.gz) |
| .tr | Session-state settings (Turbo Debugger for DOS) Man page input suitable for troff -man (cawf2.zip) |
| .tr2 | Session-state settings (Turbo Debugger for Win32) |
| .trace | ECXpert Debugging file TcpDump Output file Telcordia Software Visualization and Analysis Toolsuite WebSTAR Mail Server Error file Zope 3 Strace Log |
| .trc | Debug support file (Power CTrace) |
| .tre | Directory tree file (PC-Tools) |
| .trg | Symantec LiveUpdate file |
| .tri | Trigram file |
| .trk | Kermit Script file Mixman Studio Track Train Dispatcher Railroad Centgralized Traffic Control Simulation |
| .trm | Terminal settings (Windows 3.x) |
| .trn | Translation support file (Quattro) |
| .trp | Tripmaker file |
| .trs | Executable file (Micrografx) |
| .trw | Session-state settings (Turbo Debugger for Windows) |
| .trx | Emerald PC Authorize Batch Transaction file |
| .tsk | Skins for Pocket PC PDAs PhotoImpact Quick Command |
| .tsp | Windows Telephony Service Provider |
| .tst | Printer test file (WordPerfect for Win) |
| .ttf | Truetype Font file |
| .tub | PaintShop Pro Tube file |
| .tut | Tutorial |
| .tv | Table view settings (Paradox) |
| .tv1 | Overflow file above insert point in Doc 1 (WordPerfect for Win) |
| .tv2 | Overflow file above insert point in Doc 2 (WordPerfect for Win) |
| .tv3 | Overflow file above insert point in Doc 3 (WordPerfect for Win) |
| .tv4 | Overflow file above insert point in Doc 4 (WordPerfect for Win) |
| .tv5 | Overflow file above insert point in Doc 5 (WordPerfect for Win) |
| .tv6 | Overflow file above insert point in Doc 6 (WordPerfect for Win) |
| .tv7 | Overflow file above insert point in Doc 7 (WordPerfect for Win) |
| .tv8 | Overflow file above insert point in Doc 8 (WordPerfect for Win) |
| .tv9 | Overflow file above insert point in Doc 9 (WordPerfect for Win) |
| .tvf | Table view settings (dBASE) |
| .tvo | TeveoLive |
| .tvp | NVIDIA Graphic Card Update file |
| .tvt | RealPlayer |
| .txd | Grand Theft Auto 3 Texture file Letters Direct |
| .txf | Compressed file archive created by TAR and FREEZE (.tar.f) |
| .txi | Support file (TeX) |
| .txl | Genesis3D Texture file |
| .txt | Text file |
| .tym | Time Stamp (PageMaker 4) |
| .tz | Compressed file archive created by TAR and COMPRESS (.tar.Z) |
| .tzb | Compressed file archive created by TAR - COMPRESS - BTOA (.tar.Z.btoa) |
| .uax | Unreal Audio file |
| .ub | Audio file (unsigned byte) |
| .uc2 | Compressed file archive created by UltraCompressor II (uc2.zip) |
| .ucn | New compressed file archive created by UltraCompressor II |
| .ucs | Universal Classification Standard Database file |
| .udc | Acrobat Spelling file |
| .udf | Filter (Photostyler) |
| .udl | MS Data Link |
| .uds | Sierra Generations Family file |
| .ue2 | Encrypted file archive created by UltraCompressor II |
| .ufo | Ulead Object file |
| .uha | UHARC Compressed Archive |
| .uhs | Universal Hint System (binary file) |
| .ui | Espire source code file (Geoworks UI Compiler) User interface (Sprint) |
| .uif | Long prompts for windows (WordPerfect for Win) |
| .uih | Espire header file (Geoworks UI Compiler) |
| .ul | Ulaw audio file |
| .uld | Information about uploaded files (Procomm Plus) |
| .ult | Music (UltraTracker) |
| .umb | Backup file (MemMaker) |
| .umx | Unreal music file |
| .uni | Unimod music module (MIKMOD) Datafile (Forecast Pro) |
| .unq | Fax View file |
| .unx | Text file containing UNIX specific info |
| .upd | Program update info Update data (dBASE) |
| .upo | Compiled update data (dBASE) |
| .upx | ULead Photo Express Saved Image file |
| .usb | D-Link FM Radio Update USB Protocol Analyzer Trace |
| .usp | Printer font with USASCII extended character set (PageMaker) |
| .usr | User database file (Procomm Plus - Turbo C++ tour) |
| .utf | AOL Updating Files |
| .utl | Sound file |
| .utx | Unreal Texture file Unicode file |
| .uu | Compressed ASCII file archive created by UUDE/ENCODE |
| .uue | Compressed ASCII file archive created by UUENCODE (uuexe515.exe) |
| .uvr | Ulead Cool 360 Viewer file |
| .uw | Audio file (unsigned word) |
| .uwl | WordPerfect User word list |
| .v | Consistency check support file (ReaGeniX code generator) Main input file for an image (Vivid 2.0) |
| .v64 | Nintento 64 Emulation ROM Image |
| .val | Validity checks and referential integrity (Paradox for Windows) Values list object file (dBASE Application Generator) |
| .van | Animation (VistaPro) |
| .var | Variable file (IconAuthor) |
| .vbc | Visual Business Cards |
| .vbd | ActiveX file |
| .vbe | VBScript Encoded Script file |
| .vbn | Norton Corporate anti-virus quarantined file |
| .vbp | Visual Basic Project |
| .vbs | Visual Basic Script file (Visual Basic) |
| .vbw | Visual Basic Project Workplace (Visual Basic) |
| .vbx | Visual Basic eXtension (Visual Basic) |
| .vc | Include file with color definitions (Vivid 2.0) Spreatsheet (VisiCalc) |
| .vcd | VisualCADD Drawing file Video CD format |
| .vcf | VCard file |
| .vch | Interlock Public Computer Utility |
| .vcw | Visual workbench information (MS Visual C++) |
| .vcx | Spreatsheet (VisiCalc Advanced) |
| .vda | Bitmap graphics |
| .vdb | Norton AntiVirus Corporate Edition Update file PC-cillin Quarantined file |
| .vdf | AntiVir virus definition file Vexira Anti-virus virus definition file |
| .vdm | VDM Play |
| .vdr | Drawing (ComputerEasy Draw) |
| .vdx | XML for Visio Drawing file Vector Graphic file Virtual Device Driver |
| .vem | VeePro Embroidery Software Format Voice E-mail file |
| .vew | View file (Clipper 5, Lotus Approach) |
| .vfm | Voting Form (Voter) |
| .vfn | Voting Form for Customers (Voter) |
| .vfp | TMPGEnc VFAPI Plug-in |
| .vfx | Ulead Video Studio Sample file |
| .vga | Vga display driver Vga display font |
| .vgd | Vga display driver (Generic CADD) |
| .vgr | Graphics (Ventura Publisher) |
| .vi | Graphics (Jovian Logic VI) |
| .vic | Vicar graphics |
| .vid | Ms-DOS Shell Monitor file (MS-DOS 5) Bitmap graphics (YUV12C M-Motion Frame Buffer) Screen device driver (Word) |
| .vif | Khoros Visualization image file (SDSC Image Tool) |
| .vik | Viking graphics |
| .vir | Virus Infected file |
| .vis | Vis graphics |
| .viv | VivoActive Player Video file |
| .vlm | Ashlar-Vellum file Novell Virtual Loadable Module Vellum CAD Drawing |
| .vm | Virtual Memory file (Geoworks) |
| .vm1 | Panasonic SD Voice Editor file |
| .vmc | Virtual memory configuration (Acrobat reader) |
| .vmf | Font characteristics (Ventura Publisher) Voice mail file (VocalTec Voice) |
| .vml | Vector Markup Language |
| .vmo | Mobile Phone voice file (Siemens Sl45) Virtools Behavioral Server Composition (Web-based Protected Format) Cosmopolitan Virtual Makeover File |
| .vmp | Logos Library System 2.x Verse Map |
| .vms | Text file containing VMS specific info |
| .vmt | Valve Material file. Details how a material is to be rendered in game |
| .vo | Include file with object definition (Vivid 2.0) |
| .vob | DVD video movie file |
| .voc | Digitized samples (Creative Voice file) |
| .vof | Object folder (VZ Programmer) |
| .vol | Tribes 2 game file Earth Siege 2 Archive Giants: Citizen Kabuto Archive Tribes Archive Tribes Extreme Archive |
| .vor | OpenOffice.org Template |
| .vox | Vox Audio Dialogic ADPCM Talking Technology Inc. file Natural MicroSystmes Voice file |
| .vpa | Excite Chat Gestures file |
| .vpd | Virpet Performance Descriptor VitaGraph file |
| .vpg | Graphics (VPGraphics) |
| .vpp | Virtual Pool Game Red Faction/Summoner Package file |
| .vqe | Yamaha Sound-VQ Locator File |
| .vqf | Yamaha Sound-VQ File |
| .vql | Yamaha Sound-VQ Locator File |
| .vrd | VRScape data file |
| .vrm | Overlay file (QuattroPro) |
| .vro | Panasonic DVD Recorder file |
| .vrp | Project (WATCOM VXRexx) |
| .vrs | Video Resource eg. video device driver (WordPerfect) |
| .vs | Include file with surface definition (Vivid 2.0) |
| .vsd | Diagram (Shapeware Visio) |
| .vsl | GetRight Download List file Visio Library |
| .vsm | Simulation model (VisSim) |
| .vsp | Sprite (SPX) |
| .vss | Smartshapes file (Shapeware Visio) |
| .vst | Truevision Vista bitmap graphics |
| .vtf | Valve Texture file. Used to store texture data in game |
| .vtx | XML for Visio template file |
| .vue | Animation (3D Studio) View (dBASE IV - FoxPro) |
| .vw | Text file (Volkswriter) |
| .vw3 | Text file (Volkswriter 3) |
| .vwl | VideoWave Video Wave Library |
| .vwr | File viewer file (PC Tools) |
| .vwt | VideoWave Thumbnail |
| .vxd | Virtual device driver (MS Windows) |
| .vyd | VyperHelp |
| .w | Word chart file (APPLAUSE) |
| .w30 | Printer font (AST TurboLaser) (Ventura Publisher) |
| .w31 | Startup file (Windows 3.1) |
| .w3g | Warcraft III file |
| .w3m | Warcraft III Map file |
| .w44 | Temporary file for Sort or Index (dBASE) |
| .wab | Outlook File |
| .wac | Infinity Game Engine WAVC Sound |
| .wad | Doom Game file Gunman Chronicle Archive Half Life Archive Heretic Archive Hexen Archive Quake Archive Theme Park World Archive |
| .waf | Mayim\'s WAF Compiler file |
| .wal | WalMaster Showlist file |
| .war | Java Web Archive Konqeror HTML page archive |
| .wav | Waveform audio file (RIFF WAVE format) |
| .wb1 | Notebook (Quattro Pro) |
| .wb2 | Spreadsheet (Quattro Pro) |
| .wb3 | Quattro Pro for Windows |
| .wba | WindowBlinds Compressed Skin Winace Zip file |
| .wbc | Webshots Picture Collection |
| .wbf | Ms Windows Batch File (Catch) |
| .wbk | Document/workbook (WordPerfect for Win) |
| .wbt | Batch file (WinBatch) |
| .wbx | Webigger file |
| .wbz | WebShots file |
| .wcd | Macro token list (WordPerfect for Win) |
| .wcm | Data transmission file (MS Works) Macro (WordPerfect for Win) |
| .wcp | Product information description (WordPerfect for Win) |
| .wd2 | Info Select for Palm Organizer file WordExpress Document |
| .wdb | Database (MS Works) |
| .wdf | ReliaSoft Weibull 5.0 Workshare DeltaView DeltaFile |
| .wdl | Windows XP Watchdog Log file |
| .web | Web source code file |
| .wfm | Form object (dBASE Form Designer) |
| .wfn | Font (CorelDRAW) |
| .wfx | Data file (Winfax) |
| .wg1 | Worksheet (Lotus 1-2-3/G) |
| .wg2 | Worksheet (Lotus 1-2-3 for OS/2) |
| .wid | Width table (Ventura Publisher) |
| .win | Window file (FoxPro - dBASE) Wonderware InTouch window file |
| .wiz | Page wizard (MS Publisher) |
| .wjp | WildTangent Branded .jpg file |
| .wk1 | Spreadsheet (Lotus 1-2-3 version 2.x - Symphony 1.1+) |
| .wk3 | Spreadsheet (Lotus 1-2-3 version 3.x) |
| .wk4 | Spreadsheet (Lotus 1-2-3 version 3.4) |
| .wkb | Document (WordPerfect for Win) Workbook file |
| .wke | Spreatsheet (Lotus 1-2-3 educational version) |
| .wkq | Spreatsheet (Quattro) |
| .wks | Spreadsheet (Lotus 1-2-3 version 1A - Symphony 1.0 - MS Works) Workspace (Xlisp) |
| .wll | Word Add-in |
| .wlk | Graphics (Virtus Walkthrough) |
| .wlt | eWallet file WaveL Wavelet Compressed Graphic Words of Worship Liturgy |
| .wma | Microsoft Active Streaming file |
| .wmc | Backup of startup files by Windows MathCad autoexec.wmc Macro file (WordPerfect for Win) Text file (WordMARC) |
| .wmf | Windows MetaFile vector graphics |
| .wml | Wireless markup language |
| .wmv | MS Active Streaming file |
| .wmz | Windows Media Compressed skin file |
| .wn | Text (NeXT WriteNow) |
| .wnf | Outline font description (CorelDRAW native format) |
| .wo4 | STABCAL file |
| .wo7 | STABCAL file |
| .woa | Swap file (Windows 3.x) |
| .woc | Organization (Windows OrgChart) |
| .wor | MapInfo Workspace |
| .wot | WebEx Saved Meeting Movie |
| .wow | Music (8 channels) (Grave Mod Player) |
| .wp | Text file (WordPerfect 4.2) |
| .wp5 | Document (WordPerfect 5.x) |
| .wpd | Document (WordPerfect 6.0 - PFS:WindowWorks) |
| .wpf | Fax (WorldPort) Form (WordPerfect) |
| .wpg | WildTangent Branded .PNG file Wordperfect Graphics vector graphics (DrawPerfect) |
| .wpj | MS Works Projects |
| .wpk | Macros (WordPerfect for Win) |
| .wpl | Draxy Software Wallpaper Sequencer Online WebPanel file PFS WinWorks Spreadsheet WHAT IF MOL-object Words of Worship Playlist |
| .wpm | Macros (WordPerfect) |
| .wps | Text document (MS Works) |
| .wpt | WordPerfect template 602 pro PC SUITE template document file |
| .wpw | PerfectWorks document |
| .wq! | Compressed spreadsheet (Quattro Pro) |
| .wq1 | Spreadsheet (Quattro Pro) |
| .wr1 | Spreadsheet (Symphony 1.1 - 1.2 - 2) |
| .wrd | Template (Charisma) |
| .wri | Text file (Windows Write) |
| .wrk | Spreadsheet (Symphony 1.0, 1.2, 2.0, 3.0) |
| .wrl | Plain text VRML file |
| .wrml | Plain text VRML file |
| .wrp | Compressed Amiga file archive created by WARP |
| .wrs | Windows Resource eg. printer driver (WordPerfect for Win) |
| .ws | Text file (WordStar 5.0-6.0) |
| .ws2 | Text file (WordStar 2000) |
| .wsc | Windows scripting component file |
| .wsd | Document (WordStar) |
| .wsh | Windows Script Host Settings file |
| .wsp | Workspace (Fortran PowerStation) |
| .wsr | FirstStop WebSearch file |
| .wst | Text file (WordStar) |
| .wsx | WinMX Filesharing Program |
| .wsz | Skin Zip file (WinAmp) |
| .wtr | MS Encarta file |
| .wve | Component of a DIVX Movie Conversion Psion Series 3a/3c/3mx Waveform sound file |
| .wvx | Metafile |
| .wvw | Backup Wonderware InTouch window file |
| .wwb | Button bar for document window (WordPerfect for Win) |
| .wwk | Keyboard layout (WordPerfect for Win) |
| .wwp | Worms World Party Teams file |
| .wws | AutoRoute User Information |
| .wwv | WildTangent Branded .WAV file |
| .wxp | Document (EXP for Windows) |
| .wxs | Easy Cross crosstitch file |
| .wzg | WZebra file |
| .wzs | Microsoft Word wizard |
| .x | Avs X image file (SDSC Image Tool) Lex source code file |
| .x01 | Secondary index (Paradox) |
| .x02 | Secondary index (Paradox) |
| .x03 | Secondary index (Paradox) |
| .x04 | Secondary index (Paradox) |
| .x05 | Secondary index (Paradox) |
| .x06 | Secondary index (Paradox) |
| .x07 | Secondary index (Paradox) |
| .x08 | Secondary index (Paradox) |
| .x09 | Secondary index (Paradox) |
| .x16 | Macromedia Program Extension (16-bit) |
| .x32 | Macromedia Program Extension (32-bit) |
| .xbm | X11 Bitmap graphics |
| .xdf | Milnta APL Transfer Function Workshare Synergy file |
| .xfd | XML Form in XFDL Format |
| .xfn | Printer font (Xerox 4045) (Ventura Publisher) |
| .xft | 24 pin printer font (ChiWriter) |
| .xfx | Fax File (various) |
| .xi | Fast Tracker 2 Instrument or ScreamTracker Instrument File |
| .xif | Wang image file Often a Fax image (TIFF) file ScanSoft Pagis XIF Extended Image Format Xerox image file |
| .xla | Xlib Archive (xlibpas2.zip) |
| .xla | Add-in macro sheet (MS Excel) |
| .xlb | Data (MS Excel) |
| .xlc | Chart document (MS Excel) |
| .xlk | Excel Backup |
| .xll | Excel Dynamic Link Library (MS Excel) |
| .xlm | Macro sheet (MS Excel) |
| .xlr | MS Works file |
| .xls | Spreadsheet(MS Works) DATAIR Data Import Specification Translation file Worksheet (MS Excel) |
| .xlt | Template (MS Excel) Translation table (Lotus 1-2-3 - Symphony - Procomm Plus) |
| .xlw | Workbook (MS Excel) |
| .xlx | XoloX Incomplete Download file |
| .xm | Music (Fast Tracker) |
| .xmi | Compressed eXtended MIdi music |
| .xml | Extensible Markup Language file |
| .xnf | Standard Network File form |
| .xnk | Microsoft Exchange Shortcut |
| .xpl | Music file |
| .xpm | X11 Pixel Map graphics |
| .xpr | Memorex CD-ROM label file |
| .xpt | XPCOM Type Library |
| .xpw | Leading Market Technologies EXPO Screen-Fillable Surfer Version of a Form |
| .xqt | Executable file (Waffle) |
| .xqt | Macro sheet (SuperCalc) |
| .xrf | Cross-reference file |
| .xsd | XML Schema file |
| .xsf | Milnta APL Transfer Function |
| .xsl | Extensible Stylesheet Language file |
| .xss | Ability Office Spreadsheet |
| .xtb | External translation table (LocoScript) |
| .xtr | MapTool file (an add-on for UI-View) Xtreme Tuning files |
| .xvb | WinExplorer VB Script |
| .xwd | X Window System window dump image graphics (SDSC Image Tool) |
| .xwk | Keyboard mapping (Crosstalk) |
| .xwp | Session (Crosstalk) Text file (Xerox Writer) |
| .xx | Compressed file ASCII archive created by XXENCODE (uuexe515.exe) |
| .xxe | Compressed file ASCII archive created by XXENCODE (uuexe515.exe) |
| .xxx | Singer Sewing Machine Professional SewWare file Embroidery Design file |
| .xy | Text file (XY Write) |
| .xy3 | Text file (XYWrite III) |
| .xyw | Text file (XyWrite III) |
| .xyz | ASCII RPG Maker Graphic Format XMol XYZ |
| .y | Yacc grammar file Compressed Amiga file archive created by YABBA |
| .y01 | Secondary index (Paradox) |
| .y02 | Secondary index (Paradox) |
| .y03 | Secondary index (Paradox) |
| .y04 | Secondary index (Paradox) |
| .y05 | Secondary index (Paradox) |
| .y06 | Secondary index (Paradox) |
| .y07 | Secondary index (Paradox) |
| .y08 | Secondary index (Paradox) |
| .y09 | Secondary index (Paradox) |
| .yal | Data (Arts & Letters) |
| .yuv | Yuv graphics |
| .yz | Compressed file archive created by YAC |
| .z | Compressed file ASCII archive created by COMPRESS (comp430d.zip) Compressed file archive created by PACK (Unix SysV pack) |
| .z3 | Infocom game module |
| .zap | FileWrangler Compressed file MS Windows Software Installation Settings |
| .zbd | Canon ZoomBrowser Database file MechWarrior 3 Snow Fields file Zebedee Encrypted file |
| .zdb | Wonder Word data file |
| .zdg | Compressed ZiffNet text document (Zview) |
| .zdp | ZDNet Password Pro 32 |
| .zer | Data file (Zerberus) |
| .zfx | ZFX - CC3 File Packer Tool |
| .zgm | Graphics (Zenographics) |
| .zip | Compressed file archive created by PKZIP (pkz204g.exe) |
| .zl? | Zone Alarm Mailsafe Renamed File ZoneAlarm quarantines attachments and changes their file names. Ex. .EXE to .zl9 |
| .zls | Atlantis Ocean Mind Word Processing file |
| .zom | Compressed Amiga file archive created by ZOOM |
| .zon | Grand Theft Auto 3 Zone file |
| .zoo | Compressed file archive created by ZOO (zoo210.exe) |
| .zpl | Creative Zen Micro playlist |
| .zst | ZSNES Slot 0 Savestate |
| .ztd | Ziff Davis Media text database |
| .zvd | Zyxel Voicefile (Z-Fax) |
| .zzt | ZZT Game Creation System |
| .~$~ | Temporary file (1st Reader) |
| .~ap | Old AppExpert project database (Borland C++ 4.5) |
| .~de | Project backup (Borland C++ 4.5) |
| .~mn | Menu backup (Norton Commander) |
| .\\201$\\201 | Temporary file (1st Reader) |