| File extension | The full name of the file |
|---|---|
| File extension R | R Script Format |
| File extension R*CH | BBEdit |
| File extension R0 | WinRAR Compressed Archive Format |
| File extension R00 | WinRAR Compressed Archive Format |
| File extension R01 | Split Multi-volume RAR Compressed File Archive (part 3) |
| File extension R02 | Split Multi-volume RAR Compressed File Archive (part 4) |
| File extension R03 | Split Multi-volume RAR Compressed File Archive (part 5) |
| File extension R04 | Split Multi-volume RAR Compressed File Archive (part 6) |
| File extension R05 | Split Multi-volume RAR Compressed File Archive (part 7) |
| File extension R06 | Split Multi-volume RAR Compressed File Archive (part 8) |
| File extension R07 | Split Multi-volume RAR Compressed File Archive (part 9) |
| File extension R08 | Split Multi-volume RAR Compressed File Archive (part 10) |
| File extension R09 | Split Multi-volume RAR Compressed File Archive (part 11) |
| File extension R0F | RingCentral Fax Document |
| File extension R1 | WinRAR Multi-Volume Archive Part 1 |
| File extension R10 | Split Multi-volume RAR Compressed File Archive (part 12) |
| File extension R11 | Split Multi-volume RAR Compressed File Archive (part 13) |
| File extension R12 | Norton Ghost Rar |
| File extension R13 | Norton Ghost Rar |
| File extension R14 | Norton Ghost Rar |
| File extension R15 | Norton Ghost Rar |
| File extension R16 | Norton Ghost Rar |
| File extension R17 | Norton Ghost Rar |
| File extension R18 | Norton Ghost Rar |
| File extension R19 | Norton Ghost Rar |
| File extension R1M | RealOne Streaming Media Format |
| File extension R1W | Reflection Setting |
| File extension R2 | WinRAR Multi-Volume Archive Part 2 |
| File extension R20 | Norton Ghost Rar |
| File extension R21 | Split Multi-volume RAR Compressed File Archive (part 23) |
| File extension R22 | Norton Ghost Rar |
| File extension R23 | Norton Ghost Rar |
| File extension R24 | Norton Ghost Rar |
| File extension R25 | Norton Ghost Rar |
| File extension R26 | Norton Ghost Rar |
| File extension R27 | Norton Ghost Rar |
| File extension R28 | Split Multi-volume RAR Compressed File Archive (part 30) |
| File extension R29 | Split Multi-volume RAR Compressed File Archive (part 31) |
| File extension R2D | RISA-2D |
| File extension R2K | Repertoire 2000 Music Database |
| File extension R2W | Reflection Settings |
| File extension R30 | Split Multi-volume RAR Compressed File Archive (part 32) |
| File extension R31 | Split Multi-volume RAR Compressed File Archive (part 33) |
| File extension R32 | Split Multi-volume RAR Compressed File Archive (part 34) |
| File extension R33 | Split Multi-volume RAR Compressed File Archive (part 35) |
| File extension R34 | Split Multi-volume RAR Compressed File Archive (part 36) |
| File extension R35 | Split Multi-volume RAR Compressed File Archive (part 37) |
| File extension R36 | Split Multi-volume RAR Compressed File Archive (part 38) |
| File extension R37 | Split Multi-volume RAR Compressed File Archive (part 39) |
| File extension R38 | Split Multi-volume RAR Compressed File Archive (part 40) |
| File extension R39 | Split Multi-volume RAR Compressed File Archive (part 41) |
| File extension R3D | REDCODE Multimedia Format |
| File extension R3T | RealNetworks RealText |
| File extension R40 | Split Multi-volume RAR Compressed File Archive (part 42) |
| File extension R41 | Split Multi-volume RAR Compressed File Archive (part 43) |
| File extension R42 | Split Multi-volume RAR Compressed File Archive (part 44) |
| File extension R43 | Split Multi-volume RAR Compressed File Archive (part 45) |
| File extension R44 | Split Multi-volume RAR Compressed File Archive (part 46) |
| File extension R45 | Split Multi-volume RAR Compressed File Archive (part 47) |
| File extension R46 | Split Multi-volume RAR Compressed File Archive (part 48) |
| File extension R47 | Split Multi-volume RAR Compressed File Archive (part 49) |
| File extension R48 | Split Multi-volume RAR Compressed File Archive (part 50) |
| File extension R49 | Split Multi-volume RAR Compressed File Archive (part 51) |
| File extension R50 | Split Multi-volume RAR Compressed File Archive (part 52) |
| File extension R51 | RAR Compressed Files From A Multi-volume Archive |
| File extension R52 | RAR Compressed Files From A Multi-volume Archive |
| File extension R53 | RAR Compressed Files From A Multi-volume Archive |
| File extension R54 | RAR Compressed Files From A Multi-volume Archive |
| File extension R55 | RAR Compressed Files From A Multi-volume Archive |
| File extension R56 | RAR Compressed Files From A Multi-volume Archive |
| File extension R57 | RAR Compressed Files From A Multi-volume Archive |
| File extension R58 | RAR Compressed Files From A Multi-volume Archive |
| File extension R59 | RAR Compressed Files From A Multi-volume Archive |
| File extension R60 | RAR Compressed Files From A Multi-volume Archive |
| File extension R61 | RAR Compressed Files From A Multi-volume Archive |
| File extension R62 | RAR Compressed Files From A Multi-volume Archive |
| File extension R63 | RAR Compressed Files From A Multi-volume Archive |
| File extension R64 | RAR Compressed Files From A Multi-volume Archive |
| File extension R65 | RAR Compressed Files From A Multi-volume Archive |
| File extension R66 | RAR Compressed Files From A Multi-volume Archive |
| File extension R67 | RAR Compressed Files From A Multi-volume Archive |
| File extension R68 | RAR Compressed Files From A Multi-volume Archive |
| File extension R69 | RAR Compressed Files From A Multi-volume Archive |
| File extension R70 | RAR Compressed Files From A Multi-volume Archive |
| File extension R71 | RAR Compressed Files From A Multi-volume Archive |
| File extension R72 | RAR Compressed Files From A Multi-volume Archive |
| File extension R73 | RAR Compressed Files From A Multi-volume Archive |
| File extension R74 | RAR Compressed Files From A Multi-volume Archive |
| File extension R75 | RAR Compressed Files From A Multi-volume Archive |
| File extension R76 | RAR Compressed Files From A Multi-volume Archive |
| File extension R77 | RAR Compressed Files From A Multi-volume Archive |
| File extension R78 | RAR Compressed Files From A Multi-volume Archive |
| File extension R79 | RAR Compressed Files From A Multi-volume Archive |
| File extension R8 | Microsoft Flight Simulator Texture |
| File extension R80 | RAR Compressed Files From A Multi-volume Archive |
| File extension R81 | RAR Compressed Files From A Multi-volume Archive |
| File extension R82 | RAR Compressed Files From A Multi-volume Archive |
| File extension R83 | RAR Compressed Files From A Multi-volume Archive |
| File extension R84 | RAR Compressed Files From A Multi-volume Archive |
| File extension R85 | RAR Compressed Files From A Multi-volume Archive |
| File extension R86 | RAR Compressed Files From A Multi-volume Archive |
| File extension R87 | RAR Compressed Files From A Multi-volume Archive |
| File extension R88 | RAR Compressed Files From A Multi-volume Archive |
| File extension R89 | RAR Compressed Files From A Multi-volume Archive |
| File extension R8? | Microsoft Word For DOS Font |
| File extension R90 | RAR Compressed Files From A Multi-volume Archive |
| File extension R91 | RAR Compressed Files From A Multi-volume Archive |
| File extension R92 | RAR Compressed Files From A Multi-volume Archive |
| File extension R93 | RAR Compressed Files From A Multi-volume Archive |
| File extension R94 | RAR Compressed Files From A Multi-volume Archive |
| File extension R95 | RAR Compressed Files From A Multi-volume Archive |
| File extension R96 | RAR Compressed Files From A Multi-volume Archive |
| File extension R97 | RAR Compressed Files From A Multi-volume Archive |
| File extension R98 | RAR Compressed Files From A Multi-volume Archive |
| File extension R99 | RAR Compressed Files From A Multi-volume Archive |
| File extension RA | RealAudio Audio Format |
| File extension RA2 | Flare RAW |
| File extension RA3AUTOSAVE | Command & Conquer Red Alert 3 Save Game |
| File extension RA3CAMPAIGN | Command & Conquer Red Alert 3 Save Game |
| File extension RA3REPLAY | Command & Conquer: Red Alert 3 Replay |
| File extension RA3SKIRMISH | Command & Conquer: Red Alert 3 Skirmish Map |
| File extension RAC | Venue Race Application |
| File extension RAD | Reality AdLib Tracker 2 Format |
| File extension RADIUMKEY2 | Radium Registration Format |
| File extension RADIUS | Ruby-Radius Scipt |
| File extension RADQ | Need For Madness Game Archive |
| File extension RAE | TrueZIP Encrypted ZIP Archive |
| File extension RAES | TrueZIP Encrypted ZIP Archive |
| File extension RAF | Fuji CCD-RAW Graphic Format |
| File extension RAG | RAM Advanse Generator |
| File extension RAI | SPEFO |
| File extension RAKE | Ruby Makefile |
| File extension RAKEFILE | Ruby Makefile |
| File extension RAL | WinRail Track Design Format |
| File extension RAM | Real Audio Metafile |
| File extension RAMD | Repeat After Me Document |
| File extension RAN | Dexterpen |
| File extension RAP | Magix Music Studio Rap |
| File extension RAPC | Java 2 ME Unit |
| File extension RAR | WinRAR Compressed Archive Format |
| File extension RAR1 | RAR Archive |
| File extension RAR5 | WinRAR Compressed Archive Format |
| File extension RARENX | Egis Encrypted RAR |
| File extension RARX | Renamed RAR |
| File extension RAS | Sun Raster Bitmap Format |
| File extension RASKINLICENSE | Raskin For Mac License Format |
| File extension RASKINPLACE | Raskin Place Settings Format |
| File extension RAST | Sun Raster Bitmap Image |
| File extension RAT | PICS Platform For Internet Content Selection Format |
| File extension RATDVD | RatDVD Commpressed DVD Movie |
| File extension RAV | FIFA 2001 Data Environment Format |
| File extension RAW | Digital Camera Photo RAW Image Format |
| File extension RAX | RealMedia Streaming Format |
| File extension RAY | Rayshade Picture Image Format |
| File extension RA_ | Resco Photo Viewer Thumbnail Cache |
| File extension RB | Ruby Script Format |
| File extension RB0 | Trend AntiVirus Backup |
| File extension RB1 | R:Base Data Format |
| File extension RB2 | R:Base Data Format |
| File extension RB3 | R:BASE Data |
| File extension RB4 | Trend AntiVirus Backup Format |
| File extension RBA | RegexBuddy Regular Expression |
| File extension RBB | Top Secret Crypto Gold Random Bits Bin |
| File extension RBC | Easy Resume Creator Pro Resume Format |
| File extension RBDF | Reading For The Blind And Dyslexic Audio Book With Text |
| File extension RBF | Microsoft Windows Rollback Script Format |
| File extension RBG | RegexBuddy GREP Action |
| File extension RBI | EBahn Reader |
| File extension RBJ | Extra Redcode Kit Compiled Redcode Object Format |
| File extension RBK | Microsoft Windows 95 Registry Backup Format |
| File extension RBL | RegexBuddy Library |
| File extension RBM | Propellerhead ReBirth Modulation V2.0 |
| File extension RBO | REALbasic Class |
| File extension RBP | REALbasic Project Format |
| File extension RBS | Rebirth Song Format |
| File extension RBT | Lego MINDSTORMS NXT Program Format |
| File extension RBTX | NXT Create Pack & Go Package |
| File extension RBVCP | Real Studio Project Format |
| File extension RBW | Ruby |
| File extension RBX | IBM Rembo-C Compiled Script Format |
| File extension RBXL | ROBLOX Game Format |
| File extension RBXM | ROBLOX Model Format |
| File extension RBXS | ROBLOX Script |
| File extension RBZ | Rail Baron Player Saved Game Format |
| File extension RC | Microsoft Visual Studio Visual C/C++ Resource Script Format |
| File extension RC1 | Samsung S5230 Firmware Format |
| File extension RC2 | Microsoft Visual Studio Visual C/C++ Non-compilable Resource Script Format |
| File extension RC3 | Visual C Resource |
| File extension RCB | Ripple Chat Bot Document |
| File extension RCD | PcAnywhere Recorded Session Format |
| File extension RCF | Prototype Game Format |
| File extension RCG | Netscape Newsgroup Format |
| File extension RCH | SWAT Reach Output |
| File extension RCL | Easy CD And DVD Creator Project Format |
| File extension RCN | QRacing Track |
| File extension RCO | Sony PlayStation Portable PSP Resource Format |
| File extension RCP | Rich Chart Builder Project |
| File extension RCPROJECT | Apple IMovie Project Format |
| File extension RCS | RandomControl Scene Format |
| File extension RCT | Microsoft Visual Studio Resource Template Format |
| File extension RCU | RealWorld Layered Cursor Image |
| File extension RCV | Eudora Temporary Download |
| File extension RCX | REDCINE-X Project Format |
| File extension RCY | ReCycle Audio Loop Format |
| File extension RD | R Document |
| File extension RD2 | TOCA Race Driver 2 Saved Game |
| File extension RD3 | CorelDRAW CorelDream 3D |
| File extension RD3F | CorelDRAW CorelDream 3D |
| File extension RD5 | Autodesk Road Aligment |
| File extension RDA | Oracle Storage Area Format |
| File extension RDAT | RNA Data (RDAT) |
| File extension RDATA | R Workspace Format |
| File extension RDB | N64 Nintendo 64 ROM Database Format |
| File extension RDC | IDRISI Raster Documentation Format |
| File extension RDD | ALTA |
| File extension RDE | Painkiller Overdose Game |
| File extension RDF | Resource Description Framework RSS Feed Format |
| File extension RDG | Morae Recorded Video |
| File extension RDI | Device Independent Bitmap Format |
| File extension RDL | Corel Paradox Format |
| File extension RDLC | Microsoft Visual Studio Report Definition Format |
| File extension RDLX | Microsoft Power View Project Format |
| File extension RDM | Ragdoll Masters Preference |
| File extension RDO | Xerox Rawster Document Object Format |
| File extension RDOC | RubyDoc Script |
| File extension RDP | Microsoft Windows Remote Desktop Connection Settings Format |
| File extension RDS | Ray Dream 3D Animation Format |
| File extension RDT | Adobe Captivate RoboDemo Template |
| File extension RDV | NTgraph |
| File extension RDW | Real-DRAW Project |
| File extension RDX | Borland Reflex Database Format |
| File extension RDY | INet-Server |
| File extension RDZ | Mandrake Linux Install |
| File extension RE | Python Regular Expressions Source Code |
| File extension RE2 | NEK5000 Mesh |
| File extension RE4 | Resident Evil 4 |
| File extension REA | Readme Text |
| File extension README | Visual FoxPro Documenting Wizard List |
| File extension REAL | Gnome Desktop |
| File extension REAPEAKS | REAPER Scratch |
| File extension REB | REBOL Script Format |
| File extension REC | Recorded Format |
| File extension RECO | Evernote |
| File extension RECORD | Recorded Audio Format |
| File extension RED | CADViewer Redline Markup Format |
| File extension REDIR | Spotify Redirect Format |
| File extension REF | Reference Format |
| File extension REFERENCE | Budget In Brief Application Reference Format |
| File extension REFI | E-Sword Reference IOS Notes |
| File extension REFRESH | Microsoft Visual Studio Refresh Format |
| File extension REFX | E-Sword Reference Library Note |
| File extension REG | Windows Registry Data Format |
| File extension REGI | Kagi Registration Module |
| File extension REGS | Netscape Registry |
| File extension REGTRANS-MS | Microsoft Windows Vista And Windows 7 Registry Format |
| File extension REGULARIZER | SAM Transition Regularizer |
| File extension REJ | Mercurial Reject |
| File extension REL | Norton Internet Security 2001 Log Format |
| File extension RELOC | Microsoft Windows EXE Relocation Format |
| File extension RELS | Microsoft Open Office XML Relationships Format |
| File extension REM | BlackBerry Encrypted Data Format |
| File extension RENDERMAN | Pixar RenderMan 3.1 Specification |
| File extension REP | BusinessObjects Report Format |
| File extension REPATCH | Reason DCAM EnvShaper Effect Preset |
| File extension REPX | XtraReports Report Definition |
| File extension REQ | SSL Certificate Request Format |
| File extension RES | Microsoft C, C++ Compiled Resource Format |
| File extension RESDEX | Stronghold 3 Resource |
| File extension RESJSON | Microsoft Windows 8 Metro JavaScript Format |
| File extension RESMONCFG | Microsoft Windows Resource Monitor Settings Format |
| File extension RESOURCECONFIG | Visual Studio Resource Configuration |
| File extension RESOURCES | Microsoft Visual Studio Resource Format |
| File extension RESP | Microsoft Windows Report Log |
| File extension REST | ReStructuredText |
| File extension RESW | Microsoft Windows 8 Resources Format |
| File extension RESX | Microsoft Visual Studio .NET XML Resource Template Format |
| File extension RET | RETScreen Project Format |
| File extension REV | WinRAR Recovery Volume Format |
| File extension REW | MRMC Markov Reward Model Checker Definition |
| File extension REWI | MRMC Markov Reward Model Checker Definition |
| File extension REX | ReCycle Audio Loop Export Format |
| File extension REZ | LithTech Game Engine Resource Format |
| File extension RF | Sun Bitmap Image |
| File extension RF0 | SmartWare Runtime Project |
| File extension RF1 | Retirement Forecast Format |
| File extension RF2 | SmartWare Runtime Project |
| File extension RF3 | SmartWare Runtime Project |
| File extension RF4 | SmartWare Runtime Project |
| File extension RF5 | Tektronix |
| File extension RFA | Autodesk Revit Architecture Family Format |
| File extension RFB | RoboForm Bookmarks Format |
| File extension RFC | RoboForm Contact Format |
| File extension RFD | RecogniFORM Form Definition Format |
| File extension RFE | RockFlow Log |
| File extension RFG | RFG Integrator System Database |
| File extension RFGS_PC | Red Faction: Guerilla Saved Game Format |
| File extension RFH | RFG Integrator Householding Database |
| File extension RFI | SPEFO Stellar Spectra Analysis |
| File extension RFL | ANSYS Format |
| File extension RFM | RFactor Modification Format |
| File extension RFMOD | RFactor 2 Mod |
| File extension RFN | RoboForm SafeNote Files |
| File extension RFO | RoboForm License And Options Format |
| File extension RFP | RoboForm Passcard Format |
| File extension RFQ | RoboForm SearchCard Format |
| File extension RFR | Adobe Photoshop Frame Filter |
| File extension RFS | RealFlow Script |
| File extension RFT | Revit Template Format |
| File extension RFV | Restricted Focus Viewer Input |
| File extension RFW | Rockchip Firmware Format |
| File extension RFX | RoboForm Blocked Passcard |
| File extension RG | Rosegarden Music |
| File extension RGB | SGI RGB Bitmap Format |
| File extension RGBA | Silicon Graphics Image File Format |
| File extension RGBE | Radiance Map |
| File extension RGD | Rosegarden Device Definition |
| File extension RGDB | Adobe Registration Database |
| File extension RGE | Microsoft Outlook For Mac Archive Format, Entourage Personal Folder Format |
| File extension RGF | Advanced Registry Tracer Scan Data |
| File extension RGH | ZZ RouGH Image |
| File extension RGI | RealArcade Game Installer |
| File extension RGM | Essence Game Engine Model |
| File extension RGMB | RootsMagic Backup Format |
| File extension RGMC | RootsMagic Genealogy Project Format |
| File extension RGN | Garmin Region Format |
| File extension RGO | RepliGo Virtual Print Format |
| File extension RGP | RealArcade Game Package |
| File extension RGRP | Pro Tools Region Group Format |
| File extension RGS | InstallShield Script For Windows Registry |
| File extension RGSS2A | RPG Maker VX RGSS Encrypted Archive Format |
| File extension RGSS3A | RPG Maker VX RGSS Version 3 Encrypted Archive |
| File extension RGSSAD | RPG Maker VX RGSS Encrypted Archive |
| File extension RGU | Microsoft Windows Mobile Registry Entry |
| File extension RGUNINST | RealArcade Uninstall Script |
| File extension RGZ | Ragnarok EXE And BGM Patch Archive |
| File extension RH | C++ Resource Header |
| File extension RHA | Adobe RoboHelp AIR Help Project |
| File extension RHISTORY | R History Format |
| File extension RHK | Backdoor.Win32.Rbot.rhk Trojan Virus |
| File extension RHL | EdgeSounds RatHole Compressed Audio |
| File extension RHM | Right Hemisphere Material |
| File extension RHP | Encore Format Format Format |
| File extension RHTML | Ruby HTML Web Page Format |
| File extension RI | Lotus 1-2-3 Data |
| File extension RIBBONS | Ribbons |
| File extension RIC | Lego NXT Image Format |
| File extension RID | GerbMagic Raster Image |
| File extension RIF | Corel Painter Raster Image Format |
| File extension RIFF | Painter Raster Image |
| File extension RIG | LightWave 3D RIG Function Format |
| File extension RIK | SharpMap |
| File extension RIM | BioWare Resource Image Format |
| File extension RIO | IBM AIX System |
| File extension RIP | Lotus Notes Error |
| File extension RIPXR | RipXR Compressed Archive |
| File extension RIS | Research Information Systems Citation Format |
| File extension RISCOS | Acorn RISC OS |
| File extension RISE | RISE Information Model Format |
| File extension RIV | CRiSP Harvest |
| File extension RIX | ColoRix Bitmap Image |
| File extension RJS | RealJukebox Skin |
| File extension RJT | RealPlayer Track Info Style |
| File extension RK | WinRK Archive Format |
| File extension RKC | Mario Kart Wii Competition Data |
| File extension RKG | Mario Kart Wii Ghost Data |
| File extension RKP | Rockchip MP4 Player Game |
| File extension RKR | Rakarrack |
| File extension RKT | Racket Information Module |
| File extension RKV | Star Wars The Clone Wars Republic Heroes Game Archive |
| File extension RKW | RockWorks Graphics |
| File extension RL | R.viewer Format |
| File extension RL1 | Descent 1 Registered Level |
| File extension RL2 | Descent 2 Registered Level |
| File extension RL4 | Device-independent Bitmap |
| File extension RLA | Alias/Wavefront Bitmap Image |
| File extension RLB | Alias/Wavefront Bitmap Image |
| File extension RLC | ArcView Image |
| File extension RLD | Norton Commander Temporary |
| File extension RLE | Run Length Encoded Bitmap |
| File extension RLEGZ | Golly Compressed Pattern Format |
| File extension RLF | ArcGIS Report Layout Format |
| File extension RLG | Weibull++ |
| File extension RLI | RealWorld Graphics Layered Image |
| File extension RLL | Resource Hacker Resource Library Format |
| File extension RLN | Alpha Four Database |
| File extension RLOG | MPICH Log |
| File extension RLS | RadLight Skin Format |
| File extension RLST | Sims 3 Data |
| File extension RLT | ReliaSoft BlockSim & Weibull++ |
| File extension RLW | Ricochet Lost Worlds: Recharged |
| File extension RLX | XMetaL Compiled Form |
| File extension RM | RealMedia Format |
| File extension RM3D | RiskMetrics RiskManager |
| File extension RMA | RealMedia Audio |
| File extension RMAN | Oracle Datafile Backup |
| File extension RMAP | CompeGPS Land Raster Map |
| File extension RMB | SafeGuard RemovableMedia Keyring Backup |
| File extension RMBAK | Registry Mechanic Backup Format |
| File extension RMC | RMCalc |
| File extension RMD | Microsoft RegMaid Document Format |
| File extension RMDP | Alan Wake Game Data |
| File extension RME | Final Fantasy Audio |
| File extension RMF | Adobe Acrobat Rights Management Document Format |
| File extension RMG | Rimage Image |
| File extension RMGC | RootsMagic Genealogy Database |
| File extension RMI | MIDI-sequention Music (RIFF RMID Format) |
| File extension RMID | RIFF RMID Midi Format |
| File extension RMJ | RealAudio Media Format |
| File extension RMK | CA Clipper RMake Makefile |
| File extension RML | Redline Markup Language Format |
| File extension RMM | RAM Meta Format |
| File extension RMN | Oracle Recovery Manager Script |
| File extension RMP | RealAudio Audio Format |
| File extension RMR | ResumeMaker Format |
| File extension RMS | RealMedia Secure Media File Format |
| File extension RMSKIN | Rainmeter Skin Format |
| File extension RMT | Linksys Router Firmware Format |
| File extension RMUF | Alpha Five Runtime Format |
| File extension RMV | The Simpsons Hit & Run Video Format |
| File extension RMVB | RealMedia Variable Bitrate Format |
| File extension RMW | RAM Commander Database |
| File extension RMX | RealMedia Secure Media Clip |
| File extension RNA | Malware |
| File extension RNC | RNC ProPack Archive Format |
| File extension RND | AutoCAD Autoshade Rendering Slide Format |
| File extension RNG | Random Number Generator Data Format |
| File extension RNK | Dial-up Shortcut |
| File extension RNL | GTX Runlength Encoded Bitmap Graphics |
| File extension RNQ | Renque Model Format |
| File extension RNR | The 11th Hour Game Data |
| File extension RNS | Reason Audio Format |
| File extension RNT | EdgeCAM Licensing Data |
| File extension RNW | Sweave Source |
| File extension RNX | RealPlayer Audio Or Settings Format |
| File extension RO | ROwin Project |
| File extension ROACJ | Call Of Juarez Game Resource Data |
| File extension ROB | Wintask Compiled Program |
| File extension ROBO | RoboMind Source Code |
| File extension ROC | SpaceCAD Rocket Design |
| File extension ROCA | RIB Office Compressed Archive Format |
| File extension ROCK | Rockbox Installation Format |
| File extension ROCKWELL | Rockwell (modem) |
| File extension ROCKWELL-2 | Rockwell 2-bit ADPCM Data |
| File extension ROCKWELL-3 | Rockwell 3-bit ADPCM Data |
| File extension ROCKWELL-4 | Rockwell 4-bit ADPCM Data |
| File extension ROD | Actuate E.Report Designer Report Object Design |
| File extension RODL | RemObjects Definition Language Format |
| File extension ROFF | Unformatted Manual Page (Roff/nroff/troff/groff) |
| File extension ROFL | Leagues Of Legends Replay |
| File extension ROG | Roger 2 Data Format |
| File extension ROH | Avantes |
| File extension ROI | Report Object Instance |
| File extension ROL | AdLib Visual Composer Music Data Format |
| File extension ROM | Read Only Memory Image (emulators/AONs) |
| File extension ROO | WinRAR Archive |
| File extension ROQ | Id Software Game Video |
| File extension ROS | Dynamite VSP Rail Object Style Format |
| File extension ROT | Homeworld 2 Game Graphics Data Format |
| File extension ROTEST | RemObjects SDK Test Format |
| File extension ROTESTRESULT | RemObjects SDK Test Results Format |
| File extension ROU | Gerber Route Format |
| File extension ROV | Actuate E.Report Designer Report Object Value |
| File extension ROW | Actuate E.Report HTML Report Document |
| File extension ROX | Actuate E.Report Designer Report Object Executable Format |
| File extension ROXIO | Roxio Creator Project Format |
| File extension ROZ | ASc TimeTables Timetable |
| File extension RP | Axure RP Project Format |
| File extension RP2 | RetroPlatform Player (Amiga Forever) Format |
| File extension RP3 | Need For Speed Game |
| File extension RP9 | RetroPlatform Format |
| File extension RPA | RIB ITWO Project Archive Format |
| File extension RPACK | Call Of Juarez Game Data |
| File extension RPB | Radmin Phonebook Format |
| File extension RPBM | Portable Bitmap Image |
| File extension RPC | Visual Basic Crystal Reports |
| File extension RPD | Roleplay Designer Data Format |
| File extension RPE | Performance Analyzer |
| File extension RPF | 3ds Max Rich Pixel Format |
| File extension RPG | The RPG Programming Language |
| File extension RPGM | Portable Greyscale Image |
| File extension RPI | Render Extension |
| File extension RPJ | RealPlayer JavaScript Format |
| File extension RPK | NeverForget Backup Reminder Format |
| File extension RPL | Toribash Replay Game Format |
| File extension RPLIB | Axure Widget Library Format |
| File extension RPLN | Adobe InDesign Required Function Library |
| File extension RPM | Linux Package Manager Format |
| File extension RPMSG | Microsoft Restricted Permission Message Format |
| File extension RPN | ACT! 2.0 Report |
| File extension RPNM | Portable Image Image |
| File extension RPO | IBM XL C/C++ For Linux Compiler |
| File extension RPP | REAPER Project Format |
| File extension RPPM | Portable Image Image Format |
| File extension RPPRJ | Axure RP Shared Project Format |
| File extension RPR | IBM Voice Type Languages Vocabels |
| File extension RPROFILE | Quick-R R Programming Language Configuration |
| File extension RPS | 3D Studio Max Render Preset Settings Format |
| File extension RPT | Report Format |
| File extension RPT2 | ESignal Report |
| File extension RPTPROJ | Microsoft Visual Studio 2008 Report Project |
| File extension RPTR | RafflePrinter Document Format |
| File extension RPTX | Spiceworks Report |
| File extension RPV | RealPlayer Visualization |
| File extension RPW | RPWiz Project |
| File extension RPX | Repute Tutorial |
| File extension RPY | Python Script Format |
| File extension RPYM | RenPy Module |
| File extension RPZ | Crystal Reports ZIP Compressed And Encrypted Report |
| File extension RQC | Micro Focus Revolve |
| File extension RQI | TrueNet R-Quest Disc Image |
| File extension RQM | IBM RequisitePro Metrics Report |
| File extension RQT | Report Quality Plotting Module |
| File extension RQY | Microsoft Excel OLE DB Query |
| File extension RRA | Windows Installer Temporary Format Format |
| File extension RRC | BlackBerry Java Resource Content |
| File extension RRD | Reduced Resolution Dataset Format |
| File extension RRD4J | RRD4J Graph |
| File extension RRF | Raytech |
| File extension RRG | JRiver Media Center License |
| File extension RRH | BlackBerry Resource Header |
| File extension RRI | RealWorld Icon Editor Picture Image Format |
| File extension RRPA | Oracle Reports Remote Printing Utility PDF Report |
| File extension RRR | Registry Mechanic Backup Format |
| File extension RRT | Rhapzode Resource Template Format |
| File extension RRX | IBM Datacap Define |
| File extension RS | Sun Raster Bitmap Image Format |
| File extension RS1 | RETScreen Spreadsheet |
| File extension RS2 | RailSim2 Layout Format |
| File extension RS7 | LightTools Radiant Source Model |
| File extension RS8 | ProSource |
| File extension RSA | RSA Digital Certificate Format |
| File extension RSB | Red Storm Bitmap Format |
| File extension RSC | Resource Format |
| File extension RSD | Database Format |
| File extension RSD-JOURNAL | REALSQLDatabase Journal |
| File extension RSDB | Resort Software Database |
| File extension RSDF | RapidShare Download Settings Format |
| File extension RSDS | SharePoint Shared Data Source |
| File extension RSED | ResEdit |
| File extension RSF | Mediafour MacDrive Macintosh Resource Fork |
| File extension RSFX | Reflection |
| File extension RSG | Drakan Order Of The Flame |
| File extension RSH | Warhammer 40,000 Texture |
| File extension RSI | Reactis |
| File extension RSL | Robot Scripting Language |
| File extension RSM | ReliaSoft MPC 3 Format |
| File extension RSML | RealPlayer ML |
| File extension RSN | Propellerhead Reason Audio Format |
| File extension RSO | LEGO NXT Brick Audio Format |
| File extension RSP | Linker Response Format |
| File extension RSQ | IBM 4690 Operating System |
| File extension RSR | Poser Model Preview Format |
| File extension RSRC | MAC OS Resource Format |
| File extension RSRS | Buddy API |
| File extension RSS | Really Simple Syndication - RSS File Format |
| File extension RST | ReStructuredText Format |
| File extension RSU | Reflection For IBM Updated Settings |
| File extension RSV | RSView32 Project Format |
| File extension RSW | R&R SQL Report Writer Report Format |
| File extension RSX | RED Metadata XML Format |
| File extension RSYM | ArchiCAD For MAC Geometric Description Language |
| File extension RS_ | Macintosh Resource Fork |
| File extension RT | RealText Subtitle Format |
| File extension RT2 | OziExplorerCE Route |
| File extension RTA | IBM Voice Type Languages Vocabulary Format |
| File extension RTAB | Randy Tab Guitar Tablature |
| File extension RTB | Rhino 3D Toolbar Collection |
| File extension RTC | AutoCAD Civil Rating Curve Data Format |
| File extension RTD | Retina Network Security Scanner Output Format |
| File extension RTE | OziExplorer Route Format |
| File extension RTF | Rich Text Format Document |
| File extension RTFD | Rich Text With Graphic Document Format |
| File extension RTG | Autodesk Maya 3D Scene Data |
| File extension RTH | ANSYS Results |
| File extension RTI | Real Tracker Instrument Format |
| File extension RTK | Adobe RoboHelp Configuration |
| File extension RTKT | Royaltek Binary Data |
| File extension RTL | Text |
| File extension RTM | Real Tracker Music Module (MOD) Format |
| File extension RTMAP | CompeGPS Land Raster Map |
| File extension RTN | MeasureMind 3D |
| File extension RTP | Microsoft Software Update Format |
| File extension RTPI | 3rdTech Scanner |
| File extension RTR | Astrotite 200X Offline Data Repair |
| File extension RTS | Resource Tuner Console Script Format |
| File extension RTSL | RealAudio RTSL Document |
| File extension RTSP | Apple QuickTime Real-time Streaming Protocol |
| File extension RTSTN | Audials Station Format |
| File extension RTSX | Royal TS Document Settings |
| File extension RTT | Ragtime |
| File extension RTTTL | RTTTL / Nokring Mobile Ring-tone Format |
| File extension RTU | RivaTuner Update |
| File extension RTW | Real-Time Workshop Database |
| File extension RTWSH | Radiotracker Wishlist Format |
| File extension RTX | Mobile Phone Ringtone |
| File extension RT_ | Microsoft Windows Winhelp Compressed |
| File extension RU | Russian Text Or Localization Format |
| File extension RUB | JQuery Rules |
| File extension RUF | ProWORX Tables Reference Format |
| File extension RUJ | Oracle Recovery-Unit Journal |
| File extension RUL | Rule Format |
| File extension RULE | Visual C++ Project Rules |
| File extension RULESET | Microsoft Visual Studio Code Analysis Ruleset Format |
| File extension RUM | Bink Video Subtitle Format |
| File extension RUN | Linux Executable Format |
| File extension RUP | IBM Rational Unified Process |
| File extension RUS | Navitel Navigator Map |
| File extension RV | RealVideo Video Format |
| File extension RV3 | Newsbin Pro |
| File extension RV9 | RealVideo Movie |
| File extension RVB | Rhinoceros 3D Visual Basic Script |
| File extension RVC | TNTmips Windows Version Project |
| File extension RVD | VPHybridCAD Native Drawing Format |
| File extension RVDATA | RPG Maker Data Format |
| File extension RVDATA2 | RPG Maker VX Data |
| File extension RVF | RichView Document |
| File extension RVG | Revit External Group |
| File extension RVI | Revenant Game Archive |
| File extension RVID | Snapz Pro X Video Format |
| File extension RVL | Muvee Project |
| File extension RVM | Revenant Game Archive |
| File extension RVMAT | Armed Assault Texture |
| File extension RVP | Microsoft Scan Configuration |
| File extension RVPROJ | RPG Maker VX Project Format |
| File extension RVPROJ2 | RPG Maker VX Project |
| File extension RVR | Revenant Game Archive |
| File extension RVS | Revenant Game Archive |
| File extension RVT | Autodesk Revit Architecture Project Format |
| File extension RVW | ReviewMate Review |
| File extension RVX | Real Protected Video Format |
| File extension RW | Navicat For MySQL |
| File extension RW2 | Panasonic Lumix RAW Image Format |
| File extension RW3 | RapidWeaver Site Design Format |
| File extension RW5 | Survey Pro Data |
| File extension RWA | Weibull++ |
| File extension RWC | WAsP Regional Wind Climate |
| File extension RWD | RWD Compressed Game Archive |
| File extension RWG | Random Word Generator File Format |
| File extension RWK | Bentley InRoads Project |
| File extension RWL | D-Lux 4 RAW Image Format |
| File extension RWLIBRARY | Paperless Receipt Library Format |
| File extension RWM | Windows Imaging Resource Only |
| File extension RWO | Matlab Output |
| File extension RWP | RapidWeaver Web Package Format |
| File extension RWPLUGIN | RapidWeaver Plugin Format |
| File extension RWR | RiffWorks IntelliRiffer |
| File extension RWS | Borland C++ Resource Workshop Symbol Format |
| File extension RWSNIPPET | RapidWeaver Snippet Format |
| File extension RWSTYLE | RapidWeaver Style Format |
| File extension RWSW | RapidWeaver Website Saved Project |
| File extension RWTHEME | RapidWeaver Theme Format |
| File extension RWTL | HyperRESEARCH |
| File extension RWX | Netscape Live 3D |
| File extension RWZ | Microsoft Outlook Internet Rules Settings Format |
| File extension RX | MS-DOS 7 |
| File extension RX2 | ReCycle! Audio Loop Format |
| File extension RX3 | FIFA 11 Texture |
| File extension RXC | Roxio Certificate Format |
| File extension RXD | Attachmate Reflection X Manager Definition |
| File extension RXDATA | RPG Maker RMXP Data Format |
| File extension RXE | Lego Mindstorms NXT Executable Format |
| File extension RXL | Seetrax Ranger CAD Drawing |
| File extension RXM | Reflection X Multi Session |
| File extension RXML | Roxen Macro Language |
| File extension RXP | Easy CD & DVD Creator 6 Playlist |
| File extension RXPROJ | RPG Maker Project |
| File extension RXS | RSIGuard RSIScript |
| File extension RXX | RAR Compressed Files From A Multi-volume Archive |
| File extension RZ | Rzip Compressed Archive |
| File extension RZB | Red Zion E-book Book Format |
| File extension RZK | File Crypt Password Format |
| File extension RZN | Red Zion E-book Notes Format |
| File extension RZR | Renamed WinRAR Archive |
| File extension RZS | Red Zion Security Format |
| File extension RZX | File Crypt Encrypted Format |
File extensions in alphabetical order: R
The list of file extensions, sorted alphabetically, beginning with the letter R