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File extensions in alphabetical order #ABCDEFGHIJKLMNOPQRSTUVWXYZ

Browse extensions - R

    File extensions starting with a letter R

Browse extensions - R

# File extension Developer
0 .R - R Script Format Apple
1 .R*CH - BBEdit Bare Bones Software
2 .R0 - WinRAR Compressed Archive Format RARLAB
3 .R00 - WinRAR Compressed Archive Format RARLAB
4 .R01 - Split Multi-volume RAR Compressed File Archive (part 3) RARLAB
5 .R02 - Split Multi-volume RAR Compressed File Archive (part 4) RARLAB
6 .R03 - Split Multi-volume RAR Compressed File Archive (part 5) RARLAB
7 .R04 - Split Multi-volume RAR Compressed File Archive (part 6) Eugene Roshal
8 .R05 - Split Multi-volume RAR Compressed File Archive (part 7) Eugene Roshal
9 .R06 - Split Multi-volume RAR Compressed File Archive (part 8) Eugene Roshal
10 .R07 - Split Multi-volume RAR Compressed File Archive (part 9) Eugene Roshal
11 .R08 - Split Multi-volume RAR Compressed File Archive (part 10) Eugene Roshal
12 .R09 - Split Multi-volume RAR Compressed File Archive (part 11) Eugene Roshal
13 .R0F - RingCentral Fax Document RingCentral, Inc.
14 .R1 - WinRAR Multi-Volume Archive Part 1 RARLAB
15 .R10 - Split Multi-volume RAR Compressed File Archive (part 12) Eugene Roshal
16 .R11 - Split Multi-volume RAR Compressed File Archive (part 13) Eugene Roshal
17 .R12 - Norton Ghost Rar Symantec Corporation
18 .R13 - Norton Ghost Rar Symantec Corporation
19 .R14 - Norton Ghost Rar Symantec Corporation
20 .R15 - Norton Ghost Rar Symantec Corporation
21 .R16 - Norton Ghost Rar Symantec Corporation
22 .R17 - Norton Ghost Rar Symantec Corporation
23 .R18 - Norton Ghost Rar Symantec Corporation
24 .R19 - Norton Ghost Rar Symantec Corporation
25 .R1M - RealOne Streaming Media Format RealNetworks
26 .R1W - Reflection Setting Attachmate Corporation
27 .R2 - WinRAR Multi-Volume Archive Part 2 RARLAB
28 .R20 - Norton Ghost Rar Symantec Corporation
29 .R21 - Split Multi-volume RAR Compressed File Archive (part 23) Eugene Roshal
30 .R22 - Norton Ghost Rar Symantec Corporation
31 .R23 - Norton Ghost Rar Symantec Corporation
32 .R24 - Norton Ghost Rar Symantec Corporation
33 .R25 - Norton Ghost Rar Symantec Corporation
34 .R26 - Norton Ghost Rar Symantec Corporation
35 .R27 - Norton Ghost Rar N/A
36 .R28 - Split Multi-volume RAR Compressed File Archive (part 30) Eugene Roshal
37 .R29 - Split Multi-volume RAR Compressed File Archive (part 31) Eugene Roshal
38 .R2D - RISA-2D RISA Technologies, LLC.
39 .R2K - Repertoire 2000 Music Database N/A
40 .R2W - Reflection Settings Attachmate Corporation
41 .R30 - Split Multi-volume RAR Compressed File Archive (part 32) Eugene Roshal
42 .R31 - Split Multi-volume RAR Compressed File Archive (part 33) Eugene Roshal
43 .R32 - Split Multi-volume RAR Compressed File Archive (part 34) Eugene Roshal
44 .R33 - Split Multi-volume RAR Compressed File Archive (part 35) Eugene Roshal
45 .R34 - Split Multi-volume RAR Compressed File Archive (part 36) Eugene Roshal
46 .R35 - Split Multi-volume RAR Compressed File Archive (part 37) Eugene Roshal
47 .R36 - Split Multi-volume RAR Compressed File Archive (part 38) Eugene Roshal
48 .R37 - Split Multi-volume RAR Compressed File Archive (part 39) Eugene Roshal
49 .R38 - Split Multi-volume RAR Compressed File Archive (part 40) Eugene Roshal
50 .R39 - Split Multi-volume RAR Compressed File Archive (part 41) Eugene Roshal
51 .R3D - REDCODE Multimedia Format RED
52 .R3T - RealNetworks RealText RealNetworks, Inc.
53 .R40 - Split Multi-volume RAR Compressed File Archive (part 42) Eugene Roshal
54 .R41 - Split Multi-volume RAR Compressed File Archive (part 43) Eugene Roshal
55 .R42 - Split Multi-volume RAR Compressed File Archive (part 44) Eugene Roshal
56 .R43 - Split Multi-volume RAR Compressed File Archive (part 45) Eugene Roshal
57 .R44 - Split Multi-volume RAR Compressed File Archive (part 46) Eugene Roshal
58 .R45 - Split Multi-volume RAR Compressed File Archive (part 47) Eugene Roshal
59 .R46 - Split Multi-volume RAR Compressed File Archive (part 48) Eugene Roshal
60 .R47 - Split Multi-volume RAR Compressed File Archive (part 49) Eugene Roshal
61 .R48 - Split Multi-volume RAR Compressed File Archive (part 50) Eugene Roshal
62 .R49 - Split Multi-volume RAR Compressed File Archive (part 51) Eugene Roshal
63 .R50 - Split Multi-volume RAR Compressed File Archive (part 52) Eugene Roshal
64 .R51 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
65 .R52 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
66 .R53 - RAR Compressed Files From A Multi-volume Archive N/A
67 .R54 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
68 .R55 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
69 .R56 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
70 .R57 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
71 .R58 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
72 .R59 - RAR Compressed Files From A Multi-volume Archive N/A
73 .R60 - RAR Compressed Files From A Multi-volume Archive N/A
74 .R61 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
75 .R62 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
76 .R63 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
77 .R64 - RAR Compressed Files From A Multi-volume Archive N/A
78 .R65 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
79 .R66 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
80 .R67 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
81 .R68 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
82 .R69 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
83 .R70 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
84 .R71 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
85 .R72 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
86 .R73 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
87 .R74 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
88 .R75 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
89 .R76 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
90 .R77 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
91 .R78 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
92 .R79 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
93 .R8 - Microsoft Flight Simulator Texture Microsoft Studios
94 .R80 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
95 .R81 - RAR Compressed Files From A Multi-volume Archive N/A
96 .R82 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
97 .R83 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
98 .R84 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
99 .R85 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
100 .R86 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
101 .R87 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
102 .R88 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
103 .R89 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
104 .R8? - Microsoft Word For DOS Font N/A
105 .R90 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
106 .R91 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
107 .R92 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
108 .R93 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
109 .R94 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
110 .R95 - RAR Compressed Files From A Multi-volume Archive N/A
111 .R96 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
112 .R97 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
113 .R98 - RAR Compressed Files From A Multi-volume Archive N/A
114 .R99 - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
115 .RA - RealAudio Audio Format RealNetworks
116 .RA2 - Flare RAW N/A
117 .RA3AUTOSAVE - Command & Conquer Red Alert 3 Save Game Electronic Arts, Inc.
118 .RA3CAMPAIGN - Command & Conquer Red Alert 3 Save Game Electronic Arts, Inc.
119 .RA3REPLAY - Command & Conquer: Red Alert 3 Replay Electronic Arts, Inc.
120 .RA3SKIRMISH - Command & Conquer: Red Alert 3 Skirmish Map Electronic Arts, Inc.
121 .RAC - Venue Race Application Concept2 Inc.
122 .RAD - Reality AdLib Tracker 2 Format N/A
123 .RADIUMKEY2 - Radium Registration Format CatPig Studios
124 .RADIUS - Ruby-Radius Scipt N/A
125 .RADQ - Need For Madness Game Archive RadicalPlay.com
126 .RAE - TrueZIP Encrypted ZIP Archive Schlichtherle IT Services
127 .RAES - TrueZIP Encrypted ZIP Archive Schlichtherle IT Services
128 .RAF - Fuji CCD-RAW Graphic Format Fuji
129 .RAG - RAM Advanse Generator Bentley Systems, Incorporated
130 .RAI - SPEFO Astronomical Institute of the Academy of Sciences of the Czech Republic
131 .RAKE - Ruby Makefile Ruby community
132 .RAKEFILE - Ruby Makefile Ruby community
133 .RAL - WinRail Track Design Format Span Software
134 .RAM - Real Audio Metafile RealNetworks
135 .RAMD - Repeat After Me Document Apple, Inc.
136 .RAN - Dexterpen Owen F Ransen
137 .RAP - Magix Music Studio Rap MAGIX AG
138 .RAPC - Java 2 ME Unit BlackBerry (Research In Motion Limited)
139 .RAR - WinRAR Compressed Archive Format Eugene Roshal
140 .RAR1 - RAR Archive N/A
141 .RAR5 - WinRAR Compressed Archive Format RARLAB
142 .RARENX - Egis Encrypted RAR Egis Technology Inc.
143 .RARX - Renamed RAR N/A
144 .RAS - Sun Raster Bitmap Format Sun Microsystems
145 .RASKINLICENSE - Raskin For Mac License Format Raskin Software
146 .RASKINPLACE - Raskin Place Settings Format Raskin Software
147 .RAST - Sun Raster Bitmap Image N/A
148 .RAT - PICS Platform For Internet Content Selection Format W3C
149 .RATDVD - RatDVD Commpressed DVD Movie ACE GmbH
150 .RAV - FIFA 2001 Data Environment Format EA Sports
151 .RAW - Digital Camera Photo RAW Image Format N/A
152 .RAX - RealMedia Streaming Format RealNetworks
153 .RAY - Rayshade Picture Image Format Craig Kolb
154 .RA_ - Resco Photo Viewer Thumbnail Cache Resco, s.r.o.
155 .RB - Ruby Script Format N/A
156 .RB0 - Trend AntiVirus Backup Trend Micro Inc.
157 .RB1 - R:Base Data Format R:BASE Technologies, Inc.
158 .RB2 - R:Base Data Format R:BASE Technologies, Inc.
159 .RB3 - R:BASE Data R:BASE Technologies, Inc.
160 .RB4 - Trend AntiVirus Backup Format N/A
161 .RBA - RegexBuddy Regular Expression Just Great Software Co. Ltd.
162 .RBB - Top Secret Crypto Gold Random Bits Bin TAN$TAAFL Software Company
163 .RBC - Easy Resume Creator Pro Resume Format Sarm Software
164 .RBDF - Reading For The Blind And Dyslexic Audio Book With Text N/A
165 .RBF - Microsoft Windows Rollback Script Format Microsoft
166 .RBG - RegexBuddy GREP Action Just Great Software Co. Ltd.
167 .RBI - EBahn Reader Robert Bentley, Inc.
168 .RBJ - Extra Redcode Kit Compiled Redcode Object Format Marco Pontello
169 .RBK - Microsoft Windows 95 Registry Backup Format Microsoft
170 .RBL - RegexBuddy Library Just Great Software Co. Ltd.
171 .RBM - Propellerhead ReBirth Modulation V2.0 Propellerhead Software AB
172 .RBO - REALbasic Class REAL Software, Inc.
173 .RBP - REALbasic Project Format REAL Software
174 .RBS - Rebirth Song Format Propellerhead Software
175 .RBT - Lego MINDSTORMS NXT Program Format LEGO
176 .RBTX - NXT Create Pack & Go Package N/A
177 .RBVCP - Real Studio Project Format REAL Software
178 .RBW - Ruby N/A
179 .RBX - IBM Rembo-C Compiled Script Format IBM
180 .RBXL - ROBLOX Game Format ROBLOX
181 .RBXM - ROBLOX Model Format ROBLOX
182 .RBXS - ROBLOX Script ROBLOX
183 .RBZ - Rail Baron Player Saved Game Format Intersystem Concepts, Inc.
184 .RC - Microsoft Visual Studio Visual C/C++ Resource Script Format Microsoft
185 .RC1 - Samsung S5230 Firmware Format Samsung
186 .RC2 - Microsoft Visual Studio Visual C/C++ Non-compilable Resource Script Format Microsoft
187 .RC3 - Visual C Resource Microsoft Corporation
188 .RCB - Ripple Chat Bot Document RealityRipple.com
189 .RCD - PcAnywhere Recorded Session Format Symantec
190 .RCF - Prototype Game Format N/A
191 .RCG - Netscape Newsgroup Format N/A
192 .RCH - SWAT Reach Output Grassland, Soil & Water Research Laboratory
193 .RCL - Easy CD And DVD Creator Project Format Sonic Solutions
194 .RCN - QRacing Track Qstarz International Co, Ltd.
195 .RCO - Sony PlayStation Portable PSP Resource Format Sony
196 .RCP - Rich Chart Builder Project Pacific Software
197 .RCPROJECT - Apple IMovie Project Format Apple, Inc.
198 .RCS - RandomControl Scene Format RandomControl
199 .RCT - Microsoft Visual Studio Resource Template Format Microsoft
200 .RCU - RealWorld Layered Cursor Image RealWorld Graphics
201 .RCV - Eudora Temporary Download QUALCOMM Incorporated
202 .RCX - REDCINE-X Project Format RED
203 .RCY - ReCycle Audio Loop Format Propellerhead Software
204 .RD - R Document N/A
205 .RD2 - TOCA Race Driver 2 Saved Game Codemasters
206 .RD3 - CorelDRAW CorelDream 3D Corel Corporation
207 .RD3F - CorelDRAW CorelDream 3D Corel Corporation
208 .RD5 - Autodesk Road Aligment Autodesk, Inc.
209 .RDA - Oracle Storage Area Format The R Project for Statistical Computing
210 .RDAT - RNA Data (RDAT) N/A
211 .RDATA - R Workspace Format The R Project for Statistical Computing
212 .RDB - N64 Nintendo 64 ROM Database Format N/A
213 .RDC - IDRISI Raster Documentation Format Clark Labs
214 .RDD - ALTA ReliaSoft Corporation
215 .RDE - Painkiller Overdose Game Mindware Studios, s.r.o.
216 .RDF - Resource Description Framework RSS Feed Format N/A
217 .RDG - Morae Recorded Video TechSmith Corporation
218 .RDI - Device Independent Bitmap Format Tesline-Service
219 .RDL - Corel Paradox Format Corel Corporation
220 .RDLC - Microsoft Visual Studio Report Definition Format Microsoft
221 .RDLX - Microsoft Power View Project Format Microsoft
222 .RDM - Ragdoll Masters Preference Matteo Guarnieri
223 .RDO - Xerox Rawster Document Object Format N/A
224 .RDOC - RubyDoc Script James Britt
225 .RDP - Microsoft Windows Remote Desktop Connection Settings Format Microsoft
226 .RDS - Ray Dream 3D Animation Format DAZ Productions
227 .RDT - Adobe Captivate RoboDemo Template Adobe Systems Incorporated
228 .RDV - NTgraph Nikolai Teofilov
229 .RDW - Real-DRAW Project www.MediaChance.com
230 .RDX - Borland Reflex Database Format Borland
231 .RDY - INet-Server Teldas GmbH
232 .RDZ - Mandrake Linux Install MMIX Mandriva
233 .RE - Python Regular Expressions Source Code N/A
234 .RE2 - NEK5000 Mesh Argonne National Laboratory
235 .RE4 - Resident Evil 4 Capcom Co., Ltd.
236 .REA - Readme Text N/A
237 .README - Visual FoxPro Documenting Wizard List N/A
238 .REAL - Gnome Desktop The GNOME Project
239 .REAPEAKS - REAPER Scratch Cockos Incorporated
240 .REB - REBOL Script Format REBOL Technologies
241 .REC - Recorded Format Topfield
242 .RECO - Evernote Evernote Corporation
243 .RECORD - Recorded Audio Format DaveTech
244 .RED - CADViewer Redline Markup Format Tailor Made Software
245 .REDIR - Spotify Redirect Format Spotify
246 .REF - Reference Format Microsoft
247 .REFERENCE - Budget In Brief Application Reference Format N/A
248 .REFI - E-Sword Reference IOS Notes Rick Meyers
249 .REFRESH - Microsoft Visual Studio Refresh Format Microsoft
250 .REFX - E-Sword Reference Library Note Rick Meyers
251 .REG - Windows Registry Data Format Microsoft
252 .REGI - Kagi Registration Module Kagi
253 .REGS - Netscape Registry AOL Inc.
254 .REGTRANS-MS - Microsoft Windows Vista And Windows 7 Registry Format Microsoft
255 .REGULARIZER - SAM Transition Regularizer Richard Hughey - Kevin Karplus - Anders Krogh
256 .REJ - Mercurial Reject N/A
257 .REL - Norton Internet Security 2001 Log Format Symantec
258 .RELOC - Microsoft Windows EXE Relocation Format Microsoft
259 .RELS - Microsoft Open Office XML Relationships Format Microsoft
260 .REM - BlackBerry Encrypted Data Format Research In Motion
261 .RENDERMAN - Pixar RenderMan 3.1 Specification Pixar
262 .REP - BusinessObjects Report Format SAP AG
263 .REPATCH - Reason DCAM EnvShaper Effect Preset Propellerhead Software AB
264 .REPX - XtraReports Report Definition Developer Express Inc.
265 .REQ - SSL Certificate Request Format N/A
266 .RES - Microsoft C, C++ Compiled Resource Format N/A
267 .RESDEX - Stronghold 3 Resource Firefly Studios Ltd.
268 .RESJSON - Microsoft Windows 8 Metro JavaScript Format Microsoft
269 .RESMONCFG - Microsoft Windows Resource Monitor Settings Format Microsoft
270 .RESOURCECONFIG - Visual Studio Resource Configuration Microsoft Corporation
271 .RESOURCES - Microsoft Visual Studio Resource Format Microsoft
272 .RESP - Microsoft Windows Report Log Microsoft Corporation
273 .REST - ReStructuredText N/A
274 .RESW - Microsoft Windows 8 Resources Format Microsoft
275 .RESX - Microsoft Visual Studio .NET XML Resource Template Format Microsoft
276 .RET - RETScreen Project Format Natural Resources Canada
277 .REV - WinRAR Recovery Volume Format RARLAB
278 .REW - MRMC Markov Reward Model Checker Definition RWTH Aachen University
279 .REWI - MRMC Markov Reward Model Checker Definition RWTH Aachen University
280 .REX - ReCycle Audio Loop Export Format Propellerhead Software
281 .REZ - LithTech Game Engine Resource Format Monolith
282 .RF - Sun Bitmap Image Sun Microsystems, Inc.
283 .RF0 - SmartWare Runtime Project SmartWare Corporation
284 .RF1 - Retirement Forecast Format N/A
285 .RF2 - SmartWare Runtime Project SmartWare Corporation
286 .RF3 - SmartWare Runtime Project SmartWare Corporation
287 .RF4 - SmartWare Runtime Project SmartWare Corporation
288 .RF5 - Tektronix Tektronix, Inc.
289 .RFA - Autodesk Revit Architecture Family Format Autodesk
290 .RFB - RoboForm Bookmarks Format Siber Systems
291 .RFC - RoboForm Contact Format Siber Systems
292 .RFD - RecogniFORM Form Definition Format Recogniform Technologies
293 .RFE - RockFlow Log Institute of Fluid Mechanics and Environmental Physics in Civil Engineering
294 .RFG - RFG Integrator System Database Raddon Financial Group
295 .RFGS_PC - Red Faction: Guerilla Saved Game Format Volition
296 .RFH - RFG Integrator Householding Database Raddon Financial Group
297 .RFI - SPEFO Stellar Spectra Analysis Astronomical Institute of the Academy of Sciences of the Czech Republic
298 .RFL - ANSYS Format ANSYS Inc.
299 .RFM - RFactor Modification Format Image Space
300 .RFMOD - RFactor 2 Mod N/A
301 .RFN - RoboForm SafeNote Files Siber Systems
302 .RFO - RoboForm License And Options Format Siber Systems
303 .RFP - RoboForm Passcard Format Siber Systems
304 .RFQ - RoboForm SearchCard Format Siber Systems
305 .RFR - Adobe Photoshop Frame Filter Adobe Systems Incorporated
306 .RFS - RealFlow Script Next Limit Technologies
307 .RFT - Revit Template Format Autodesk
308 .RFV - Restricted Focus Viewer Input N/A
309 .RFW - Rockchip Firmware Format Fuzhou Rockchip Electronics
310 .RFX - RoboForm Blocked Passcard Siber Systems, Inc.
311 .RG - Rosegarden Music Chris Cannam and D. Michael McIntyre
312 .RGB - SGI RGB Bitmap Format SGI
313 .RGBA - Silicon Graphics Image File Format N/A
314 .RGBE - Radiance Map N/A
315 .RGD - Rosegarden Device Definition Chris Cannam and D. Michael McIntyre
316 .RGDB - Adobe Registration Database N/A
317 .RGE - Microsoft Outlook For Mac Archive Format, Entourage Personal Folder Format Microsoft
318 .RGF - Advanced Registry Tracer Scan Data ElcomSoft Co. Ltd.
319 .RGH - ZZ RouGH Image N/A
320 .RGI - RealArcade Game Installer RealNetworks, Inc.
321 .RGM - Essence Game Engine Model Relic Entertainment Inc.
322 .RGMB - RootsMagic Backup Format RootsMagic
323 .RGMC - RootsMagic Genealogy Project Format RootsMagic
324 .RGN - Garmin Region Format Garmin
325 .RGO - RepliGo Virtual Print Format Cerience
326 .RGP - RealArcade Game Package N/A
327 .RGRP - Pro Tools Region Group Format Avid Technology
328 .RGS - InstallShield Script For Windows Registry N/A
329 .RGSS2A - RPG Maker VX RGSS Encrypted Archive Format Enterbrain
330 .RGSS3A - RPG Maker VX RGSS Version 3 Encrypted Archive Enterbrain, Inc.
331 .RGSSAD - RPG Maker VX RGSS Encrypted Archive Enterbrain, Inc.
332 .RGU - Microsoft Windows Mobile Registry Entry Microsoft Corporation
333 .RGUNINST - RealArcade Uninstall Script RealNetworks, Inc.
334 .RGZ - Ragnarok EXE And BGM Patch Archive Gravity Interactive Inc.
335 .RH - C++ Resource Header Microsoft Corporation
336 .RHA - Adobe RoboHelp AIR Help Project Adobe Systems Incorporated
337 .RHISTORY - R History Format The R Project for Statistical Computing
338 .RHK - Backdoor.Win32.Rbot.rhk Trojan Virus N/A
339 .RHL - EdgeSounds RatHole Compressed Audio Edge Sounds, LLC
340 .RHM - Right Hemisphere Material Right Hemisphere Inc.
341 .RHP - Encore Format Format Format GVOX
342 .RHTML - Ruby HTML Web Page Format N/A
343 .RI - Lotus 1-2-3 Data IBM
344 .RIBBONS - Ribbons M.Carson
345 .RIC - Lego NXT Image Format The LEGO Group
346 .RID - GerbMagic Raster Image BronzeWare Inc.
347 .RIF - Corel Painter Raster Image Format Corel
348 .RIFF - Painter Raster Image Corel
349 .RIG - LightWave 3D RIG Function Format NewTek, Inc.
350 .RIK - SharpMap N/A
351 .RIM - BioWare Resource Image Format BioWare
352 .RIO - IBM AIX System IBM
353 .RIP - Lotus Notes Error IBM
354 .RIPXR - RipXR Compressed Archive RipXR Corp.
355 .RIS - Research Information Systems Citation Format Research Information Systems
356 .RISCOS - Acorn RISC OS RISCOS Ltd.
357 .RISE - RISE Information Model Format RISE to Bloome Software
358 .RIV - CRiSP Harvest School of Aquatic & Fishery Sciences, University of Washington
359 .RIX - ColoRix Bitmap Image RIX Softworks
360 .RJS - RealJukebox Skin N/A
361 .RJT - RealPlayer Track Info Style RealNetworks, Inc.
362 .RK - WinRK Archive Format M Software
363 .RKC - Mario Kart Wii Competition Data Nintendo Co., Ltd.
364 .RKG - Mario Kart Wii Ghost Data Nintendo Co., Ltd.
365 .RKP - Rockchip MP4 Player Game Rockchip
366 .RKR - Rakarrack SourceForge.net
367 .RKT - Racket Information Module N/A
368 .RKV - Star Wars The Clone Wars Republic Heroes Game Archive Krome Studios
369 .RKW - RockWorks Graphics RockWare, Inc.
370 .RL - R.viewer Format R.LAB
371 .RL1 - Descent 1 Registered Level Interplay Entertainment Corporation
372 .RL2 - Descent 2 Registered Level Interplay Entertainment Corporation
373 .RL4 - Device-independent Bitmap N/A
374 .RLA - Alias/Wavefront Bitmap Image N/A
375 .RLB - Alias/Wavefront Bitmap Image N/A
376 .RLC - ArcView Image Esri
377 .RLD - Norton Commander Temporary Symantec Corporation
378 .RLE - Run Length Encoded Bitmap N/A
379 .RLE.GZ - Golly Compressed Pattern Format Golly
380 .RLF - ArcGIS Report Layout Format ESRI
381 .RLG - Weibull++ ReliaSoft Corporation
382 .RLI - RealWorld Graphics Layered Image RealWorld Graphics
383 .RLL - Resource Hacker Resource Library Format Microsoft
384 .RLN - Alpha Four Database Alpha Software, Inc.
385 .RLOG - MPICH Log N/A
386 .RLS - RadLight Skin Format RadLight
387 .RLST - Sims 3 Data Electronic Arts, Inc.
388 .RLT - ReliaSoft BlockSim & Weibull++ ReliaSoft Corporation
389 .RLW - Ricochet Lost Worlds: Recharged Reflexive® Entertainment Inc.
390 .RLX - XMetaL Compiled Form JustSystems Corp.
391 .RM - RealMedia Format RealNetworks
392 .RM3D - RiskMetrics RiskManager MSCI Inc.
393 .RMA - RealMedia Audio RealNetworks, Inc.
394 .RMAN - Oracle Datafile Backup Oracle Corporation
395 .RMAP - CompeGPS Land Raster Map CompeGPS TEAM S.L.
396 .RMB - SafeGuard RemovableMedia Keyring Backup Utimaco Safeware AG
397 .RMBAK - Registry Mechanic Backup Format PC Tools
398 .RMC - RMCalc Washington State Department of Transportation
399 .RMD - Microsoft RegMaid Document Format RED
400 .RMDP - Alan Wake Game Data Microsoft Studios
401 .RME - Final Fantasy Audio SQUARE ENIX CO.
402 .RMF - Adobe Acrobat Rights Management Document Format Adobe Systems
403 .RMG - Rimage Image N/A
404 .RMGC - RootsMagic Genealogy Database RootsMagic, Inc.
405 .RMI - MIDI-sequention Music (RIFF RMID Format) N/A
406 .RMID - RIFF RMID Midi Format N/A
407 .RMJ - RealAudio Media Format RealNetworks
408 .RMK - CA Clipper RMake Makefile Grafx Software Development Tools
409 .RML - Redline Markup Language Format Autodesk
410 .RMM - RAM Meta Format RealNetworks
411 .RMN - Oracle Recovery Manager Script Oracle Corporation
412 .RMP - RealAudio Audio Format RealNetworks
413 .RMR - ResumeMaker Format Individual Software
414 .RMS - RealMedia Secure Media File Format RealNetworks
415 .RMSKIN - Rainmeter Skin Format The Rainmeter Team
416 .RMT - Linksys Router Firmware Format N/A
417 .RMUF - Alpha Five Runtime Format Alpha Software
418 .RMV - The Simpsons Hit & Run Video Format Radical Entertainment
419 .RMVB - RealMedia Variable Bitrate Format RealNetworks
420 .RMW - RAM Commander Database ALD
421 .RMX - RealMedia Secure Media Clip RealNetworks
422 .RNA - Malware N/A
423 .RNC - RNC ProPack Archive Format N/A
424 .RND - AutoCAD Autoshade Rendering Slide Format Autodesk
425 .RNG - Random Number Generator Data Format N/A
426 .RNK - Dial-up Shortcut Microsoft Corporation
427 .RNL - GTX Runlength Encoded Bitmap Graphics N/A
428 .RNQ - Renque Model Format N/A
429 .RNR - The 11th Hour Game Data Trilobyte, Inc.
430 .RNS - Reason Audio Format Propellerhead Software
431 .RNT - EdgeCAM Licensing Data Planit
432 .RNW - Sweave Source N/A
433 .RNX - RealPlayer Audio Or Settings Format RealNetworks
434 .RO - ROwin Project Procedimientos-Uno, S.L.
435 .ROACJ - Call Of Juarez Game Resource Data Ubisoft Entertainment S.A.
436 .ROB - Wintask Compiled Program Taskware
437 .ROBO - RoboMind Source Code Arvid Halma
438 .ROC - SpaceCAD Rocket Design spacecad.com
439 .ROCA - RIB Office Compressed Archive Format RIB Software
440 .ROCK - Rockbox Installation Format Rockbox
441 .ROCKWELL - Rockwell (modem) N/A
442 .ROCKWELL-2 - Rockwell 2-bit ADPCM Data N/A
443 .ROCKWELL-3 - Rockwell 3-bit ADPCM Data N/A
444 .ROCKWELL-4 - Rockwell 4-bit ADPCM Data N/A
445 .ROD - Actuate E.Report Designer Report Object Design Actuate
446 .RODL - RemObjects Definition Language Format RemObjects
447 .ROFF - Unformatted Manual Page (Roff/nroff/troff/groff) N/A
448 .ROFL - Leagues Of Legends Replay Riot Games Inc.
449 .ROG - Roger 2 Data Format N/A
450 .ROH - Avantes N/A
451 .ROI - Report Object Instance Actuate
452 .ROL - AdLib Visual Composer Music Data Format N/A
453 .ROM - Read Only Memory Image (emulators/AONs) N/A
454 .ROO - WinRAR Archive N/A
455 .ROQ - Id Software Game Video Id Software
456 .ROS - Dynamite VSP Rail Object Style Format 3am Solutions (UK) Limited
457 .ROT - Homeworld 2 Game Graphics Data Format Sierra Entertainment
458 .ROTEST - RemObjects SDK Test Format RemObjects
459 .ROTESTRESULT - RemObjects SDK Test Results Format RemObjects
460 .ROU - Gerber Route Format N/A
461 .ROV - Actuate E.Report Designer Report Object Value N/A
462 .ROW - Actuate E.Report HTML Report Document Actuate Corporation
463 .ROX - Actuate E.Report Designer Report Object Executable Format Sonic Solutions
464 .ROXIO - Roxio Creator Project Format Sonic Solutions
465 .ROZ - ASc TimeTables Timetable aSc Applied Software Consultants
466 .RP - Axure RP Project Format Axure Software Solutions
467 .RP2 - RetroPlatform Player (Amiga Forever) Format Cloanto
468 .RP3 - Need For Speed Game Electronic Arts, Inc.
469 .RP9 - RetroPlatform Format Cloanto
470 .RPA - RIB ITWO Project Archive Format RIB Software
471 .RPACK - Call Of Juarez Game Data Ubisoft Entertainment S.A.
472 .RPB - Radmin Phonebook Format Famatech
473 .RPBM - Portable Bitmap Image N/A
474 .RPC - Visual Basic Crystal Reports N/A
475 .RPD - Roleplay Designer Data Format Hand Multimedia
476 .RPE - Performance Analyzer XStream Software
477 .RPF - 3ds Max Rich Pixel Format N/A
478 .RPG - The RPG Programming Language Christopher Matthews
479 .RPGM - Portable Greyscale Image N/A
480 .RPI - Render Extension N/A
481 .RPJ - RealPlayer JavaScript Format RealNetworks, Inc.
482 .RPK - NeverForget Backup Reminder Format National Creative Registry, Inc
483 .RPL - Toribash Replay Game Format Nabi Studios
484 .RPLIB - Axure Widget Library Format Axure Software Solutions
485 .RPLN - Adobe InDesign Required Function Library Adobe Systems Incorporated
486 .RPM - Linux Package Manager Format Red Hat
487 .RPMSG - Microsoft Restricted Permission Message Format Microsoft
488 .RPN - ACT! 2.0 Report The Sage Group plc
489 .RPNM - Portable Image Image N/A
490 .RPO - IBM XL C/C++ For Linux Compiler IBM
491 .RPP - REAPER Project Format Cockos
492 .RPPM - Portable Image Image Format N/A
493 .RPPRJ - Axure RP Shared Project Format Axure Software Solutions
494 .RPR - IBM Voice Type Languages Vocabels IBM
495 .RPROFILE - Quick-R R Programming Language Configuration N/A
496 .RPS - 3D Studio Max Render Preset Settings Format Autodesk
497 .RPT - Report Format SAP
498 .RPT2 - ESignal Report eSignal
499 .RPTPROJ - Microsoft Visual Studio 2008 Report Project Microsoft Corporation
500 .RPTR - RafflePrinter Document Format RafflePrinter.com
501 .RPTX - Spiceworks Report Spiceworks Inc.
502 .RPV - RealPlayer Visualization RealNetworks, Inc.
503 .RPW - RPWiz Project N/A
504 .RPX - Repute Tutorial Geocentrix Ltd.
505 .RPY - Python Script Format N/A
506 .RPYM - RenPy Module N/A
507 .RPZ - Crystal Reports ZIP Compressed And Encrypted Report SAP AG
508 .RQC - Micro Focus Revolve Micro Focus International plc
509 .RQI - TrueNet R-Quest Disc Image R-Quest Technologies, LLC
510 .RQM - IBM RequisitePro Metrics Report N/A
511 .RQT - Report Quality Plotting Module N/A
512 .RQY - Microsoft Excel OLE DB Query Microsoft Corporation
513 .RRA - Windows Installer Temporary Format Format Microsoft
514 .RRC - BlackBerry Java Resource Content BlackBerry (Research In Motion Limited)
515 .RRD - Reduced Resolution Dataset Format N/A
516 .RRD4J - RRD4J Graph N/A
517 .RRF - Raytech Raymarine UK Ltd
518 .RRG - JRiver Media Center License JRiver, Inc.
519 .RRH - BlackBerry Resource Header BlackBerry (Research In Motion Limited)
520 .RRI - RealWorld Icon Editor Picture Image Format RealWorld Graphics
521 .RRPA - Oracle Reports Remote Printing Utility PDF Report Oracle Corporation
522 .RRR - Registry Mechanic Backup Format PC Tools
523 .RRT - Rhapzode Resource Template Format Alta Vente
524 .RRX - IBM Datacap Define IBM
525 .RS - Sun Raster Bitmap Image Format N/A
526 .RS1 - RETScreen Spreadsheet Natural Resources Canada
527 .RS2 - RailSim2 Layout Format RailSim2
528 .RS7 - LightTools Radiant Source Model Synopsys, Inc.
529 .RS8 - ProSource Radiant ZEMAX, LLC.
530 .RSA - RSA Digital Certificate Format N/A
531 .RSB - Red Storm Bitmap Format Ubisoft Entertainment
532 .RSC - Resource Format N/A
533 .RSD - Database Format REAL
534 .RSD-JOURNAL - REALSQLDatabase Journal N/A
535 .RSDB - Resort Software Database Resort Software Pty. Ltd.
536 .RSDF - RapidShare Download Settings Format RapidShare
537 .RSDS - SharePoint Shared Data Source N/A
538 .RSED - ResEdit http://www.resedit.net/
539 .RSF - Mediafour MacDrive Macintosh Resource Fork Mediafour Corporation
540 .RSFX - Reflection Attachmate Corporation
541 .RSG - Drakan Order Of The Flame Surreal Software, Inc.
542 .RSH - Warhammer 40,000 Texture Relic Entertainment Inc.
543 .RSI - Reactis Reactive Systems, Inc.
544 .RSL - Robot Scripting Language N/A
545 .RSM - ReliaSoft MPC 3 Format ReliaSoft
546 .RSML - RealPlayer ML RealNetworks, Inc.
547 .RSN - Propellerhead Reason Audio Format Propellerhead
548 .RSO - LEGO NXT Brick Audio Format LEGO
549 .RSP - Linker Response Format Microsoft
550 .RSQ - IBM 4690 Operating System​ IBM
551 .RSR - Poser Model Preview Format Smith Micro
552 .RSRC - MAC OS Resource Format Apple
553 .RSRS - Buddy API Magic Modules Pty Ltd
554 .RSS - Really Simple Syndication - RSS File Format N/A
555 .RST - ReStructuredText Format N/A
556 .RSU - Reflection For IBM Updated Settings Attachmate Corporation
557 .RSV - RSView32 Project Format Rockwell Automation
558 .RSW - R&R SQL Report Writer Report Format N/A
559 .RSX - RED Metadata XML Format RED
560 .RSYM - ArchiCAD For MAC Geometric Description Language Graphisoft
561 .RS_ - Macintosh Resource Fork Apple, Inc.
562 .RT - RealText Subtitle Format RealNetworks
563 .RT2 - OziExplorerCE Route Des & Lorraine Newman
564 .RTA - IBM Voice Type Languages Vocabulary Format IBM
565 .RTAB - Randy Tab Guitar Tablature N/A
566 .RTB - Rhino 3D Toolbar Collection Robert McNeel & Associates
567 .RTC - AutoCAD Civil Rating Curve Data Format Autodesk
568 .RTD - Retina Network Security Scanner Output Format eEye Digital Security
569 .RTE - OziExplorer Route Format N/A
570 .RTF - Rich Text Format Document N/A
571 .RTFD - Rich Text With Graphic Document Format Apple
572 .RTG - Autodesk Maya 3D Scene Data Autodesk, Inc.
573 .RTH - ANSYS Results ANSYS Inc.
574 .RTI - Real Tracker Instrument Format N/A
575 .RTK - Adobe RoboHelp Configuration Adobe Systems Incorporated
576 .RTKT - Royaltek Binary Data GeoVisu Development Team
577 .RTL - Text N/A
578 .RTM - Real Tracker Music Module (MOD) Format National Instruments
579 .RTMAP - CompeGPS Land Raster Map CompeGPS TEAM S.L.
580 .RTN - MeasureMind 3D Optical Gaging Products, Inc.
581 .RTP - Microsoft Software Update Format Microsoft
582 .RTPI - 3rdTech Scanner N/A
583 .RTR - Astrotite 200X Offline Data Repair Fantiusen Software
584 .RTS - Resource Tuner Console Script Format N/A
585 .RTSL - RealAudio RTSL Document N/A
586 .RTSP - Apple QuickTime Real-time Streaming Protocol Apple, Inc.
587 .RTSTN - Audials Station Format RapidSolution Software
588 .RTSX - Royal TS Document Settings code4ward
589 .RTT - Ragtime RagTime GmbH
590 .RTTTL - RTTTL / Nokring Mobile Ring-tone Format Nokia Corporation
591 .RTU - RivaTuner Update Guru3D.com
592 .RTW - Real-Time Workshop Database MathWorks, Inc.
593 .RTWSH - Radiotracker Wishlist Format RapidSolution Software
594 .RTX - Mobile Phone Ringtone N/A
595 .RT_ - Microsoft Windows Winhelp Compressed Microsoft Corporation
596 .RU - Russian Text Or Localization Format N/A
597 .RUB - JQuery Rules The jQuery Foundation
598 .RUF - ProWORX Tables Reference Format Schneider Electric S.A
599 .RUJ - Oracle Recovery-Unit Journal Oracle Corporation
600 .RUL - Rule Format Flexera Software
601 .RULE - Visual C++ Project Rules Microsoft Corporation
602 .RULESET - Microsoft Visual Studio Code Analysis Ruleset Format Microsoft
603 .RUM - Bink Video Subtitle Format RAD Game Tools
604 .RUN - Linux Executable Format N/A
605 .RUP - IBM Rational Unified Process IBM
606 .RUS - Navitel Navigator Map GPS Moldova
607 .RV - RealVideo Video Format RealNetworks
608 .RV3 - Newsbin Pro DJI Interprises, LLC
609 .RV9 - RealVideo Movie RealNetworks, Inc.
610 .RVB - Rhinoceros 3D Visual Basic Script Robert McNeel & Associates
611 .RVC - TNTmips Windows Version Project MicroImages, Inc.
612 .RVD - VPHybridCAD Native Drawing Format softelec
613 .RVDATA - RPG Maker Data Format Enterbrain
614 .RVDATA2 - RPG Maker VX Data Enterbrain, Inc.
615 .RVF - RichView Document Sergey Tkachenko
616 .RVG - Revit External Group Autodesk, Inc.
617 .RVI - Revenant Game Archive Eidos Interactive Ltd.
618 .RVID - Snapz Pro X Video Format Ambrosia Software
619 .RVL - Muvee Project muvee
620 .RVM - Revenant Game Archive Eidos Interactive Ltd.
621 .RVMAT - Armed Assault Texture Bohemia Interactive
622 .RVP - Microsoft Scan Configuration Microsoft Corporation
623 .RVPROJ - RPG Maker VX Project Format Enterbrain
624 .RVPROJ2 - RPG Maker VX Project Enterbrain, Inc.
625 .RVR - Revenant Game Archive Eidos Interactive Ltd.
626 .RVS - Revenant Game Archive Eidos Interactive Ltd.
627 .RVT - Autodesk Revit Architecture Project Format Autodesk
628 .RVW - ReviewMate Review Element River, LLC.
629 .RVX - Real Protected Video Format RealNetworks
630 .RW - Navicat For MySQL PremiumSoft CyberTech Ltd.
631 .RW2 - Panasonic Lumix RAW Image Format Panasonic
632 .RW3 - RapidWeaver Site Design Format Realmac Software
633 .RW5 - Survey Pro Data Spectra Precision
634 .RWA - Weibull++ ReliaSoft Corporation
635 .RWC - WAsP Regional Wind Climate Wind Energy Division at Risø DTU, Denmark
636 .RWD - RWD Compressed Game Archive NRG Systems
637 .RWG - Random Word Generator File Format Gammadyne
638 .RWK - Bentley InRoads Project Bentley Systems, Incorporated
639 .RWL - D-Lux 4 RAW Image Format Leica
640 .RWLIBRARY - Paperless Receipt Library Format Mariner Software
641 .RWM - Windows Imaging Resource Only Microsoft Corporation
642 .RWO - Matlab Output MathWorks, Inc.
643 .RWP - RapidWeaver Web Package Format Realmac Software
644 .RWPLUGIN - RapidWeaver Plugin Format Realmac Softwaree
645 .RWR - RiffWorks IntelliRiffer Sonoma Wire Works
646 .RWS - Borland C++ Resource Workshop Symbol Format Embarcadero Technologies, Inc.
647 .RWSNIPPET - RapidWeaver Snippet Format Realmac Software
648 .RWSTYLE - RapidWeaver Style Format Realmac Software
649 .RWSW - RapidWeaver Website Saved Project Realmac Software
650 .RWTHEME - RapidWeaver Theme Format Realmac Software
651 .RWTL - HyperRESEARCH ResearchWare, Inc.
652 .RWX - Netscape Live 3D AOL Inc.
653 .RWZ - Microsoft Outlook Internet Rules Settings Format Microsoft
654 .RX - MS-DOS 7 Microsoft Corporation
655 .RX2 - ReCycle! Audio Loop Format Propellerhead Software
656 .RX3 - FIFA 11 Texture Electronic Arts, Inc.
657 .RXC - Roxio Certificate Format Sonic Solutions
658 .RXD - Attachmate Reflection X Manager Definition Attachmate Corporation
659 .RXDATA - RPG Maker RMXP Data Format N/A
660 .RXE - Lego Mindstorms NXT Executable Format The LEGO Group
661 .RXL - Seetrax Ranger CAD Drawing Seetrax CAE Ltd.
662 .RXM - Reflection X Multi Session Attachmate Corporation
663 .RXML - Roxen Macro Language Roxen Internet Software AB
664 .RXP - Easy CD & DVD Creator 6 Playlist Roxio
665 .RXPROJ - RPG Maker Project Enterbrain, Inc.
666 .RXS - RSIGuard RSIScript Remedy Interactive, Inc.
667 .RXX - RAR Compressed Files From A Multi-volume Archive Eugene Roshal
668 .RZ - Rzip Compressed Archive N/A
669 .RZB - Red Zion E-book Book Format Red Zion
670 .RZK - File Crypt Password Format Red Zion
671 .RZN - Red Zion E-book Notes Format Red Zion
672 .RZR - Renamed WinRAR Archive N/A
673 .RZS - Red Zion Security Format Red Zion
674 .RZX - File Crypt Encrypted Format Red Zion