.a - UNIX static library file. .ac - ACwin project file / GNU Autoconf

configuration script / AC3D geometry file / Acceleration record file.

.acc - GEM desk accessories file. .accdb - Microsoft Access 2007 database file. .ace - ACE Archiver compression file. .act - Action diagram (FoxPro) / Action File

(Animation Master). .acv - Adobe Photoshop compensation curve file. .ade - Microsoft Access project extension. .adp - Microsoft Access project file / Dynamic web

page. .adm - Addict Dictionary file / Group Policy

Administrative Template file. .afw - Bullion firmware file. .agd - Agile Advantage file / AgileGraph data file. .ai - PostScript viewer / Acrobat Illustrator vector

graphics file / AIwin project file. .aid - MapXtreme generated file. .aif - Audio Interchange File. .aifc - Compressed audio file. .aiff - Audio Interchange File. .ald - Axapta Label Data file. .alg - ESRI Mapper File / HDLmaker file. .als - Part of the Delphi help file system. .amm - Adaptive Message Macro file. .amp - Arbitrary Map file.

.amv - Audio-Video media file. .ani - Animated cursor file. .aod - Microsoft Dynamics AX Application Object

Data file. .apn - ApneaGraph data file / Wallpaper graphics

file / REC Navigation application. .app - VoxPro file / GEM file. .aps - Binary file. .arc - Compressed file. .arj - Compressed file. .as - Flash ActionScript file. .asc - ASCII text file. .ascx - Visual Studio custom user control source file. .asf - Media player audio-visual file. .asm - Assembler file / Solid Edge assembly file / Pro

ENGINEER assembly file. .asp - Active Server page. .aspx - ASP.NET file. .aspx.cs - Visual C# source file. .aspx.resx .Net resource file. .aspx.vb - VB.Net source file. .atf - Adobe Transfer Functions file / Axon Text File. .att - Email attachment. .atx - Texture plugin (Animation Master) .aty - 3D Topicscape association type file. .au - µ-law sound file.

.aux - Auxiliary target file / Erdas Hierarchical File / LaTeX auxiliary reference file / ChiWriter auxiliary dictionary.

.av2 - Avatar2 model file (Animation Master) .ava - Avatar model file (Animation Master) .avi - Audio video file. .awk - AWK script file. .axe - AutoRoute map export file. .bad - Generic bad (corrupt) file / Non-delivered

email. .bak - Generic backup file. .bas - BASIC source code file. .bat - MS-DOS batch file. .bbc - BBC BASIC for Windows program or data

file. .bbt - BTwin database file / bbTracker GPS track

file / Basket Ball Team file. .bc - BCwin project file / BitComet intermediary

download file / Big Crunch compressed archive / Byte Code (LLVM) file.

.bcd - Board/Chip description file. .bck - VMS backup file. .bdb - Back of Works database file. .bdp - Bad mail pointer file / Combat Flight

Simulator 3 file. .bdr - Bad mail report file / Microsoft Publisher

Border file. .bfc - Windows Briefcase file.

.bil - Spot raster image file. .bin - Generic binary / MacBinary encoded file / CD

image. .bk - Adobe FrameMaker book file. .bkf - Windows backup file. .bkp - backup file .bks - Backup selection file. .blk - Descent Mission Builder block file. .bmc - Bitmap Cache file / Embroidery image file. .bmp - Bit-map image file. .bnk - Decent 2 FM sound instrument definition file. .bpg - Borland Delphi project group file. .bpl - Borland package library. .brd - Layout file for EAGLE EDA system / BizInt

Smart Charts file. .brn - BrainStorm model file. .brw - ProMash session file. .bsc - Browse information file. .bt - BTwin project file / EVwin project file / ILwin

project file. .btk - TeKton database file. .btm - Batch to memory file. .bud - Backup disk for Quicken. .bup - Backup of a .ifo file. .bva - Biovision action file. .bvh - Biovision hierarchical motion file. .bvp - BlueVoda Publication file. .bz2 - Bzip2 compressed file.

.c - 'C' programming language source code. .c4d - Clonk object definition file. .c4f - Clonk scenario folder file. .c4p - Clonk player file. .c4m - Clonk material file. .c4i - Clonk object info file. .c4s - Clonk scenario file. .c4q - Clonk queue file. .c4v - Clonk video file. .cab - Cabinet compressed file. .cam - Camera file (Animation Master). .cat - Security catalogue file. .cbl - Cobol source file. .cc - C++ source file. .ccd - CloneCD control file. .cct - Adobe Director protected cast resource file. .cd - Class diagram file / CD-i OptiImage CD image

file / cdTree CD catalogue file. .cd4 - Dymo DiscPainter file. .cda - Compact disk audio track. .cdd - Claris Draw graphics file / CVI symbol table /

CADEX drawing / ConceptDraw document / UML file.

.cdl - SignLab vector graphics file / Common Data Language file / CAD Advanced Design Language file.

.cdr - CorelDRAW drawing / Raw Audio-CD. .cdt - Corel Draw template file.

.cdx - Visual FoxPro compound index. .cer - Certificate file. .cf - CFwin project file / Sendmail configuration file /

Piranha configuration file / Zimbra configuration file. .cfm - Cold Fusion mark-up file .cfml - Cold Fusion mark-up language file. .cfg - Delphi configuration file / Outlook

configuration file / Netgear router configuration backup file.

.cgf - CargoMap file. .cgi - CGI web based program or script. .che - CHwinEHE project file / Chemical model file. .chi - Help file index / ChiWriter document. .chm - Compiled HTML help file. .cho - Choreography file (Animation Master) .chr - Charset file / Constraint Handling Rules file. .chunk001 - First part of a File Splitter split file. .chunk002 - Second part of a File Splitter split file. .chunk003 - Third part of a File Splitter split file. .cif - Easy CD Creator CD image file. .cl - Common LISP source file / CLwin project file /

Control Language file. .class - Compiled Java class file. .clp - Windows clipboard file. .cls - Latex class file / VB6 class file / GSEA

Phenotype data format file. .clw - Class Wizard file / Clarion module file. .cmd - Windows-DOS command script file.

.cmf - Corel Metafile. .cml - PADGen company information file / Chemical

Markup Language file. .cn - CNwin account file / MIwin account file / ICM

distance restraints file. .cnt - Contents file for a windows help file. .com - Executable command file. .conf - Configuration file. .coo - Coordinates file. .cos2 - Pinnacle Studio file. .cpl - Control panel item file. .cpp - C++ language source file. .cpt - Compact Pro file. .cs - Visual C# source file. .csp -Crystal Server Page / Caché Server Page. .csproj - C# project file. .css - Cascading style sheet file. .cst - Adobe Director protected cast resource file /

DesignWorks schema file / LogicWorks schema file. .csv - Comma separated value file. .ct - CTwin project file / Nucleic acid sequence and

base pairing information file / Cheat table file. .ctt - Messenger contacts file. .cue - Cue sheet file. .cur - Microsoft Windows cursor file. .cvs - CANVAS file. .cvx - CANVAS file. .cwf - ClarisWorks file / COM-Watch File.

.cxt - Macromedia Director protected cast resource file.

.cxx - C++ language source file. .da - DAwin project file. .daa - Direct-Access-Archive CD/DVD image file .dat - Generic data file / Mapinfo data file / c-tree

plus database. .db - Generic database file / Borland Paradox

database file / Thumbnail cache. .dbc - Visual FoxPro database file. .dbf - dBASE III database file / dBASE IV database

file / dBASE 5 database file / FoxPro database file / ArcView dBASE file.

.dbg - MS-Dev debug file. .dbi - Delphi Database Explorer file. .dbx - FoxPro table file / Outlook Express file. .dcf - Copy protected media file container. .dci - Delphi code template file. .dcp - Delphi component package. .dcr - Delphi component resource file / Shockwave

file .dct - Delphi file / FoxPro file / Aurora dictionary. .dcu - Delphi compiled unit. .dcx - FoxPro database index. .dd - DDwin project file / Mac Disk Doubler

compressed archive file. .ddf - Diamond Directive File. .ddi - DiskDupe image file.

.ddp - Delphi diagram portfolio file. .deb - Package file. .debuglog - MyDefrag log file. .def - Windows library definition file. .dem - Delphi file / Descent 1/2 demo file. .dep - Dependency file. .det - Descent Manager file. .dfm - Delphi form file. .dfn - Delphi support file for integrated translation

environment. .dft - Solid Edge drafting file. .dir - Shockwave file. .dg - Auto-trol vector graphics drawing file. .dgn - MicroStation binary design file. .dlg - Windows dialog resource file. .dll - Dynamic Linked Library. .dlm - (Microsoft) DownLoad Manager file / Akamai

Download Manager file / 3ds Max file. .dmg - Macintosh Disk Image. .dmp - (Windows) Dump file. .dmt - Delphi menu template file. .do - ModelSim file / Stata command file. .doc - Word document / Word Perfect document. .docx - Microsoft Word (XML) document. .dof - Delphi options file. .dot - Microsoft Word template. .dotm - Microsoft Word 2007 template supporting

macros.

.dotx - Microsoft Word 2007 template. .dpk - Delphi package. .dpl - Delphi 3 package library. .dps - DataPower script file. .dr - DRwin project file / Digital Rights file / Disaster

Recovery file. .dro - Delphi object repository file. .dpr - Delphi project file. .drv - Driver file. .drw - Brother word-processor file / Freelance file /

Micrografx file / Autocad drawing / LinkWinds drawing.

.DS_Store - Mac OS X file describing the appearance of a folder.

.dsk - Delphi desktop file. .dsm - Delphi symbol module / Visual Studio macro

file. .dsn - Tiny CAD file / ODBC File DSN. .dst - Delphi desktop settings file. .dti - Delphi 5 diagram portfolio file. .dtp - Timeworks publisher text file. .dun - Dial-up networking configuration file. .dvf - Digital Voice File / Digital View Cam file. .dvr-ms - Digital Video Recorder file. .dwf - AutoCAD drawing. .dwfx - AutoCAD drawing file. .dwg - AutoCAD binary drawing.

.dwt - AutoCAD binary drawing template / Dreamweaver page template file / Expression Web Dynamic Web Template file.

.dxb - AutoCAD binary drawing exchange format. .dxf - AutoCAD drawing exchange format file. .dxr - Macromedia Director Protected movie file. .e00 - ArcInfo export file. .eb - EBwin project file. .edb - Exchange database file / Windows update data

store file / XEphem database file / Extensible storage engine database page file.

.ecw - Enhanced Compressed Wavelet. .elx - Elixir Form Design Suite file. .emf - Enhanced Windows Metafile. .eml - Microsoft Outlook e-mail file. .end - CorelDraw arrow-head definition. .epf - EAGLE Preferences file / Encapsulated

PostScript file / Entrust profile file. .eps - Encapsulated postscript file. .eps2 - Adobe PostScript Level II. .err - FoxPro compilation error file. .esl - FoxPro support library file. .evt - Event log file. .exe - Executable file / Self extracting archive. .exp - LIB export file / SonicWall exported

configuration file.

.ezs - EZ-R Stats batch script file. .fas - Fast load lisp file.

.fcc - FreeProxy cache control file. .fcd - Virtual CD-ROM file / FreeProxy cache data

file / Flowcode file. .fcg - FastCGI script. .fd - MO5 disk image file. .fdp - FlashDevelop project file / MapSonic memory

card format map file / FileDisk Protector file. .fes - 3D Topicscape fileless occurrence file. .ffa - Fast Find file. .ffl - Fast Find file. .ffo - Fast find file. .ffx - Fast find file. .fh - Simplex database form file. .fky - FoxPro macro file. .fla - Flash movie file. .flk - Flock plugin (Animation Master) .fll - FoxPro dynamic link library. .flv - Flash Video File. .fm - Adobe FrameMaker document file. .fmt - FoxPro format file / Tharo Systems label file. .fnt - Font file / Descent font file. .fol - First Choice Database file. .fon - System font file. .for - Fortran source code file. .force - Microsoft Visual Studio file.

.fp - FinePrint AutoSave file / FoxPro configuration file / CRiSP Fishery Policy file.

.fp5 - Filemaker Pro database file. .fp7 - FileMaker Pro database file. .fpt - Foxpro table memo. .fpx - FlashPix image file. .frm - Visual Basic source code / MySql table

definition file. .frt - FoxPro report. .frx - FoxPro report / Visual Basic form binary file. .fts - Help index file. .ftw - Family Tree Maker export file .fxp - FoxPro compiled program. .gbi - Delphi database explorer file / gBurner Image

file. .gbm - MapServer bitmap store file. .gdb - MapServer database file / Interbase file. .gds - MapServer dataset file. .ged - GEDCOM file. .gem - GEM metafile. .gen - ARC Digitized graphics file / Compressed

Digitized Graphics file .gid - Windows (help) global index. .gi - Global Image file. .gif - GIF image file. .gix - MapServer sheet index file. .gjm - Compressed audio file (mono). .gjs - Compressed audio file (stereo).

.gmt - Zmodeler2 filter file. .gpd - Generic Printer Driver file / CRISP output

file / Gameplay data file / Grid Parameter Definition file / Visual Epr input file.

.gra - Gradient plugin (Animation Master). .grc - Vertical Mapper Classified Grid file. .grd - Vertical Mapper Continuous grid file /

RockWorks XYG data file. .grp - Program Manager Group file. .gsf - MapServer sheet file. .gvp - Google Video Player File. .gz - Unix compressed file. .gzip - Compressed file. .h - Header file. .ham - Descent 2 game data attribute file. .hcsp - HTML page generated from Stellent CMS. .hex - Macintosh binary file. .hhc - HTML Help Workshop Contents file. .hhf - Hand Held Format file / HLA Header file. .hhk - HTML Help Workshop Index file. .hhp - HTML Help Workshop Project file. .hi - Descent 2 high score file. .hlp - Windows standard help file. .hmp - Music file. .hog - Descent 1/2 archive file. .hol - Microsoft Outlook Holiday file. .hpp - C++ header file. .hqx - Macintosh binary file.

.ht - HyperTerminal file. .hta - Hypertext Application. .htm - HTML file. .html - HTML file. .htt - Folder settings file. .hxm - Descent 2 game data attribute file. .hxt - Hash extension plugin (Animation Master). .hxx - C++ header file.

.i00 - WinPhone phonebook / DVD Shrink. .i - Borland C++ intermediary file. .ic - ASwin project file. .icf - Information (Model) Configuration file / ICOM (CS-R20) communications file. .icl - Icon Library File. .icm - Image Color Matching profile. .ico - Windows icon file. .ics - Calendar data exchange file / SwiftView command file / IronCAD Scene file / Isochrone save file. .id - MapInfo index file. .idb - MS-Dev intermediate file. .idx - FoxPro index file / C-tree plus index file. .if - CRwin project file. .ifo - CD/DVD Information file. .iif - QuickBooks import file. .img - GEM image file / CloneCD image file / CD image file / Erdas Hierarchical Image file / LinkSys firmware image file.

.imh - Incredimail email index file. .imm - iMindMap mind-map file / IncrediMail e-mail file. .imp - eBook import file / Simply Accounting file / Compressed archive / FileMaker Pro data filter / Desktop Dispatcher import file / WINGS GIS export file. .in - GNU Autoconf configuration script. .ind - MapInfo index file. .inf - Information file. .ini - Initialisation file. .ink - Mimio presentation / Pantone reference fills file. .inl - Inline file. .ins - Internet Naming Service file / InstallShield script. .isd - MySql data file. .ism - MySql index file. .iso - CD image file. .iss - Inno Setup Script / InstallShield Silent response file. .iwp - Interactive web physics file / Wang WP file / Generated web page.jad - Java Application Descriptor.

.jar - Java Archive. .java - Java source file. .jfif - JPEG graphics file. .jgw - JPEG world file .jhtm - Java Server page

.jhtml - Java Server page. .jnl - CVS journal file. .jpg - JPEG graphics file. .jpeg - JPEG graphics file. .jpe - JPEG graphics file. .jpr - JBuilder project file. .jpx - JBuilder project file. .js - JavaScript file. .jsf - JourneyMan Session File / JavaServer Faces

file. .json - JSON data interchange file. .jsp - Java Server page. .k7 - MO5 tape image file. .klb - F-Secure anti-virus signature update file. .kfm - Keyframe Motion file (Animation Master). .kml - Keyhole Markup Language file (Google Earth) .kmz - Compressed keyhole markup language file. .l - LEX source file .lab - Excel mailing labels file / Codesoft Systems

label software template file. .lbl - Tharo Systems output label file. .lbr - Library file (Animation Master). .lbt - FoxPro label memo. .lbx - FoxPro label. .ldf - SQL Server database log file. .ldif - LDAP Data Interchange file / Netscape address

book export. .ldr - LDraw drawing file

.lgo - Windows start-up logo file. .lha - Compressed file. .lib - Library file. .lic - Component license file / Generic license file. .lit - eBook / Light file. .lnk - Windows shortcut. .log - Log file. .lsp - Autocad lisp program. .lst - Listing file / FoxPro file / Playlist file /

Kaspersky black-list file / PowerPoint play list file. .lzh - Compressed file. .m1v - MPEG movie. .m2ts - Sony high definition video file. .m3u - MP3 play list. .m4a - Apple Inc MPEG 4 file. .map - Linker map file / MapInfo file / Manifold

project file. .maq - Access query. .mar - Access report. .mat - Material file. .max - PaperPort image file. .mbm - MultiBitMap file. .mbs - Opera mailbox / Multi bit series file / Master

Bibliography style file / MR Tech Zip backup / Macrografx Picture Publisher Brush / Mailbag assistant script.

.mcd - Motion capture plugin (Animation Master).

.mco - MSN messenger winks file / XtraMusic file (tentative).

.md5 - Shorten audio checksum file / MD5 checksum file.

.mda - MicroDesign area file. .mdb - Access database. .mde - Access database (compiled). .mdf - SQL Server database file / CD image file. .mdl - Rose model file / Animation Master model

file. .mdp - MicroDesign page file. .mds - CD image file. .mdx - MapServer database index file / dBase index

file. .mgl - Mascopt network graph file / plvdkey

management summary file. .mht - Web archive file. .mhtml - Modular Hyper Text Mark-up Language

web page / Web archive file. .mid - MIDI file / MapInfo interchange file. .mif - MapInfo interchange file. .mim - A MIME file. .mix - Power C object file / Command and Conquer

file / PhotoDraw picture / Picture IT! picture / Dance eJay music mix.

.mkv - Matroska video file. .mm - FreeMind mind map file / Matrix Market file.

.mma - Musical MIDI Accompaniment song file / Master Album Maker Album.

.mmap - MindManager mind-map file. .mmd - Mail Message Download file .mn2 - Descent 2 mission file. .mod - Windows kernel module. .modd - Picture Motion Browser data file. .moff - Picture Motion Browser index file. .mol - Molfile. .mot - Motion file. .mov - QuckTime movie. .movie - Silicon Graphics movie. .moz - Netscape cache file. .mp2 - MPEG 2 audio file. .mp3 - MPEG 3 audio file. .mp4 - MPEG 4 audio file. .mpc - Musepack (audio) file. .mpd - Multi Part Dat file. .mpe - MPEG movie. .mpeg - MPEG movie. .mpg - MPEG movie. .mpp - Microsoft Project file / CAD drawing file. .msc - MMC snap-in file / CRiSP fish stocks file. .msdvd - Windows DVD Maker project file. .mse - MSwinEHE project file. .msg - Outlook message file / Fidonet message. .msi - System installer package. .msm - System installer merge module.

.msn - Descent 1 mission file. .msp - Microsoft System Installer Patch file / Midi

Studio Project file. .mspx - ASP.NET file. .mst - Microsoft System Installer Transform file .msv - Memory Stick Voice file / MyStars saved file. .mvl - Descent 2 movie archive. .mws - MapInfo workspace file. .myd - MySQL data file / MyDefrag script. .myi - MySQL index file. .nb - Nota Bene document file. .nba - Nero BackItUp compressed archive. .ncb - Visual Studio browse file. .ncf - Netware command file. .nch - Outlook express news items / Audio file /

Virus. .ndf - Secondary SQL Server data file. .nds - Nintendo DS binary file. .ndx - dBase non-maintained index file. .newsrc - Newsgroup source file. .nk2 - Microsoft Outlook Nickname file. .nlm - Netware loadable module. .nfb - Nokia Phone (Fone) Book, backup file. .nls - National language code page file. .nn - Nero CD file list. .npk - MicroTik RouterOS upgrade package / n-

Track Studio temporary file. .nrg - Nero CD image.

.ns - NSwin project file / NetStumbler log file. .nsf - Lotus notes database file. .ntf - National Imagery Transmission format. .nut - Nutricalc file. .nwc - NoteWorthy composer music score /

NavisWorks Cache file. .nws - Newsgroup article file / Newsmaster II data

file. .nzb - Newzbin file. .o - Object file. .obj - Object file (Windows) .oca - VB cache file. .ocx - ActiveX control. .od - Mascopt graph request file. .ods - OpenOffice spreadsheet / Outlook Express

mailbox. .odt - OpenDocument Text document / Virtual

Reality Explorer Kit Object file. .oeb - Open eBook file. .oft - Outlook form template file. .ogg - Ogg Vorbis music file. .old - Generic old or backup file. .opf - FlipBook definition file .opt - Visual studio workspace information file. .orf - Olympus Raw File / Descent 3 Outrage Room

Format file / Override Rules File. .ost - Exchange offline storage file. .ovl - Driveimage setup file / Overlay file.

.p - Progress 4GL code file / Pascal source file. .p12 - Personal Information Exchange file. .pab - Microsoft Outlook address book. .pak - WAD file. .pal - Generic colour palette files / Paint Shop Pro

colour palette file / PiXCL palette file. .paq8o10t - PAQ compressed archive. .par - Windows 3.x swap file. .part - Partial downloaded file. .pas - Pascal source file. .pbm - Portable bitmap image file. .pcd - Kodak photo CD image. .pch - Precompiled header file. .pce - Eudora mail file. .pcl - Printer Control Language file. .pct - Macintosh drawing file. .pcx - PC Paintbrush image file. .pd - Paradox database file / Perl data file. .pdb - Program Database / Palm document. .pdd - Adobe PhotoDeluxe image file. .pdf - Portable Document Format / Printer description

file. .pfx - PostEffect plug-in file (Animation Master) /

Personal Information Exchange file. .pgt - Compiled Tags database / Sothink Glanda

Widget Tools File. .php - PHP script file / Server side scripting file.

.pic - Lotus graphic file / Micrografx Draw! file / Pegasus image file / SoftImage frame.

.pict - Apple Mac internal picture format file. .pif - Executable / graphics file / compressed archive. .pig - Descent texture data. .pjp - JPEG graphics file. .pjpeg - JPEG graphics file. .pk7 - Signed Electronic bill. .pkl - Packing list file. .pl - Perl script. .plg - Visual Studio build log. .plist - Property list file / Preference file / Handbrake

Presets file. .plr - Descent player file. .pls - Generic playlist file. .plt - Plot file. .ply - Poly model file (Animation Master). .pm - Perl Module. .pm3 - PageMaker 3.0 document. .pm4 - PageMaker 4.0 document. .pm5 - PageMaker 5.0 document .pm6 - PageMaker 6.0 document .pml - Process Monitor log file / PADGen program

information file. .pmd - Published map document. .png - Graphics file. .pof - Descent 1 3D data file. .pog - Descent texture data.

.pol - System policy file. .pot - PowerPoint design template. .ppd - PostScript printer description / PowerPoint

slide show. .ppm - Portable pixelmap image. .ppp - Page Plus file / AIRSAR log file / Enfocus

PDF Profile. .pps - PowerPoint slide show / Ping Plotter file. .ppt - PowerPoint presentation file. .ppz - PowerPoint animation file / Packed

PowerPoint file. .prb - xyAlgebra probabilities file / DMSolver

problem file / Silicon Explorer Probe file / Phat probabilities file.

.pre - Render preset file (Animation Master). .prf - Outlook Profile file / ClarisWorks Preferences

File / Macromedia Director Preferences file. .prg - FoxPro or dBASE source file. .prj - PC Guard project file / Animation Master

project file. .prn - Print file. .pro - Pro/ENGINEER configuration file / Euphoria

profile listing file. .pro2 - Euphoria time profile listing file. .prt - Pro ENGINEER part file. .ps - PostScript file. .psd - Native Adobe Photoshop format. .psp - Paint Shop Pro image.

.pst - Personal folder file (Microsoft Outlook) / PostEffect file (Animation Master).

.pub - Microsoft Publisher document. .py - Python source file. .pwl - Windows (9x) password file. .px - Paradox database index file. .qh - Simplex database query file. .qif - Quicken import file. .qt - QuickTime movie. .qxd - QuarkXPress document. .qxp - QuarkXPress document. .r - Pegasus Mail resource file .r00 - Part of a RAR archive .r01 - Part of a RAR archive. .r02 - Part of a RAR archive. .r03 - Part of a RAR archive. .r04 - Part of a RAR archive. .r05 - Part of a RAR archive. .ra - RealAudio file. .ram - RealAudio meta file. .rar - Compressed file. .raw - Raw binary image file. .rc - Resource file. .rdf - Resource Description Framework file. .rdi - Remote desktop connection file. .rdl - Descent 1 level file. .rdlc - Client Report Definition file.

.rec - Rational Robot test script / ArcServe backup file / Audio-visual media file / RSA SecurID file / ProMash recipe file.

.res - Resource file. .resx - .Net resource file. .rdo - Rawster document object. .reg - Windows registry file. .rh - Simplex database report. .rl2 - Descent 2 level file. .rm - RealAudio video file. .rom - MO5 cartridge image file. .rpm - RedHat package manager. .rps - Delphi translation repository file. .rpt - Crystal Report file. .rsp - Response file / ODBC driver configuration file. .rt - RealText file. .rtd - RagTime data file. .rtf - Rich text file. .rtx - Rich text file. .ru - Javasoft JRE lib file / Media file. .sav - Generic backup file / Generic save file / Game

save file / SPSS data file. .sbh - Rational robot header file. .sbl - Graphic symbol library file / Rational robot

language file / Softbridge Basic language script. .sbn - Driver 3 game file / ArcView spatial index file. .sbr - Source browse file.

.sbx - Adobe Illustrator Tsume File / ArcView spatial index file.

.sca - Scala script file. .scb - Published Scala script file / Scribble document

file / AI scripting file / Supercard eBook file. .scc - Source safe integration file. .scf - Windows Explorer Command file / DNA Baser

file / LabView tag file. .sch - Scheme file (Animation Master). .scr - Screen saver / AutoCAD script file .scs - SuperTable data file. .scm - ICQ Sound Compressed Sound Scheme file. .sds - Open Office chart file / Star Office chart file /

MIDI Sample dump file / Digital Space browser link / Smart Diary Suite database.

.sea - StuffIt file. .sgml - Standard generalised mark-up language file. .sh - Shell script. .shd - Shader plugin (Animation Master). .shn - Compressed audio file. .shp - ArcView shapefile. .shs - Scrap object file. .shtml - HTML file supporting server side includes. .shx - ArcView index file. .sid - MrSID file. .sif - Windows unattended install answer file. .sis - Symbian/EPOC OS installation file. .sit - Macintosh StuffIt archive.

.sl8 - SIMUL8 simulation file. .slk - Symbolic link format file. .sln - Visual Studio solution object file. .smd - SEGA mega drive ROM file. .smi - RealPlayer file. .snd - Sound file. .snp - Microsoft Access report snapshot. .sol - Local Shared Object file (Flash). .sos - DRS OMR decode instruction file. .spo - SPSS output file. .spr - Brother spreadsheet / Half-life sprite file. .sps - SPSS syntax file / SyncBack profile file. .sql - Structured Query Language file. .sqm - Windows Live Messenger (Software Quality

Metrics) Log File / Windows Live Mail log file / Operation Flashpoint mission file.

.srd - Supercube file. .srf - ATL Server file / InfoCrafter document / Raster

graphics file / Raw graphics file / Spectral Response Function data / SurfSaver file / Terragen™ Surface map file.

.srg - Self Registration File. .srl - Local database file / Nintendo ROM dump file. .srt - Subtitles file. .ssa - Source Safe archive file. .ssf - Show Shifter File. .ssf.00 - Show Shifter file. .ssf.01 - Show Shifter file.

.sta - FinePrint stationary file. .stc - Open Office Calc template file. .std - Open Office Draw template file. .sti - Open Office Impress template file. .stm - Exchange store file / Server side include /

Server side includes / State transition diagram / Media file.

.str - String replacement file / DataPerfect file / Video game file.

.sts - Datapulse - CIM file. .stw - OpenOffice Writer template file. .stx - Santa Barbara Instrument Group file. .sub - CloneCD sub channel data file. .suo - Visual Studio user options file. .svg - Scalable vector graphic file. .svgz - Compressed scalable vector graphics file. .svn - Subversion directory. .switch - Secure package file. .swf - Flash file. .swp - Swap file. .sxc - Open Office Calc file. .sxd - Open Office Draw file. .sxg - Open Office master document. .sxi - Open Office Impress file. .sxm - Open Office Math file. .sxp - Open Office Presentation file. .sxw - Open Office Writer document. .syd - SYSTAT data file.

.syo - SYSTAT output file. .sys - Windows system file. .tab - MapInfo table structure file. .tar - tape archive compressed file. .td - Simplex database table. .tex - Latex file. .tfw - ArcView (Tiff) world coordinates file. .tga - Targa bitmap. .tgr - Tiger line file. .th - Simplex database table header file. .thm - Video thumbnail file. .tif - TIFF file. .tiff - TIFF file. .tlb - Type library file. .tmb - Thumbnail image file. .tmd - Temporary file. .tmp - Temporary file. .tod - JVC video clip file. .topc - TopicCrunch SEO-project parameter set. .tp - TPwin project file. .tpc - 3D Topicscape inter-Topicscape topic link file. .tpl - Generic template file / PHP template file. .trb - Turbulence plugin (Animation Master). .tsv - Tab Separated Values file. .ttf - True type font. .tub - Paint Shop Pro picture tube file. .tx - TX Text Control data file. .txm - Text Control Demo file.

.txt - ASCII text file. .ucf - User Constraint File / Coordinate list file /

WebEx Universal Communications file. .udf - Uniqueness definition file. .udl - Data link file. .uha - UHARC compressed archive. .url - Internet shortcut file. .user - Visual Studio user options file. .usr - User profile file for GuildFTPD .utf - Ulead Video Studio subtitle file. .uue - UU-encoded file. .v64 - Nintendo emulation ROM image. .vb - Visual Basic .NET source file. .vbproj - Visual Basic .NET project file. .vbs - Visual Basic script file. .vbx - Visual Basic extension. .vcf - vCard. .vfx - Volumetric effect plugin (Animation Master). .vgc - ViziGen code generation template flie. .vhd - Virtual Hard Disk file / Windows Server

Backup virtual disk file. .vic - ViziGen import mappings file. .vip - Magix Audio Clean system project file. .vir - Quarantined virus file. .vm - Virtual memory file. .vmc - Microsoft Virtual PC configuration file. .vob - (DVD) Video Object file.

.vpc - ViziGen code generation model control file / VIPP Project Container file.

.vsd - Visio drawing file. .vsi - Visual Studio Community Content Installer file. .vxd - Windows 9x virtual device driver. .wab - Windows address book file. .wav - Waveform audio file. .wdb - Windows Works database file. .web - FrontPage web file. .win - Microsoft Visual FoxPro save file /

Pro/ENGINEER file / Opera saved session file. .wk1 - Lotus spreadsheet. .wk2 - Lotus spreadsheet. .wk3 - Lotus spreadsheet. .wk4 - Lotus spreadsheet. .wma - Windows Media audio file. .wmf - Graphics file. .wmv - Audio/Video file. .wms - Windows Media Skin definition file. .wmz - Windows Media Skin file. .wor - MapInfo workspace file. .wp2 - Winplot file. .wp3 - Windows Photo Story project file / Winplot

file. .wpd - WordPerfect file. .wpp - Web Plus Project file / WordPerfect colour

palette file / Web Part Package file. .wps - Works word processor file.

.wpt - Brother document / Waypoints file / WordPerfect template.

.wrf- WebEx Recorded File. .wri - Windows Write Document. .wrl - VRML 3D file. .wrz - VRML 3D file. .wsf - Script host file. .wsh - Script host file. .wsp - Web Site Publisher settings / Paint Shop Pro

file / Visual C++ Workspace information file / Word Splash Pro file / Windows SharePoint Services file / Chromeleon workspace file / Whisper 32 password file.

.wswksp - Java workspace configuration file. .wsz - Winamp skin. .wtv - Windows (recorded) TV file. .wvf - Waveform data file .wvx - Windows video playlist file. .x - 3d mesh file / RPC language source file. .xar - Vector graphics file / Excel auto-recover save

file. .xbm - X windows cursor or bitmap. .xhtml - XHTML web page .xif - Image file / Pagis scanned document image file. .xlb - Microsoft Excel toolbar file. .xlr - Microsoft Works spreadsheet. .xls - Excel spreadsheet. .xlsx - Excel (XML) Spreadsheet file.

.xlt - Excel template. .xml - Generic XML file extension. .xpf - Homestead SiteBuilder file. .xpi - Cross-Platform Installer Module. .xps - Microsoft (XML) Project File. .xrp - RationalPlan project file / Gamemaker external

resources file. .xsd - XML schema definition file. .xslt - Extensible Style-sheet Language

Transformation file. .xtf - eXtended Triton Format file. .xxx - Virtual PC Temporary file. .y - YACC source file. .ywf - Yeah Write! word processor file. .yxx - Bison source file. .yz - Compressed archive. .z80 - Sinclair Spectrum emulator file. .z - Unix compressed file. .zhp - Zipped PCL file. / SwiftView command file. .zip - PKzip compressed file or archive / 7-zip

compressed file / other compressed file. .zipx - WinZip compressed file. .zix - WixZix compressed file / Quicken data file /

Caml Light debugger file. .zmc - ZoneAlarm Mailsafe email file / Passport PC

to Host Macro file. .zno - Zinio Reader Magazine file .zoo - Compressed archive.