| Extension | File Type | File Description |
|---|---|---|
| R | Programming Files | Ratfor Source Code File |
| R | Miscellaneous Files | |
| R | Audio Files | Right Audio Channel File |
| R | Data Files | Corel Paradox file |
| R | Database Files | Progress database compiled program file |
| R | Programming Files | R Script File |
| R0 | Archive Files | WinRAR Compressed Archive |
| R00 | Archive Files | WinRAR Compressed Archive |
| R00 | Backup Files | Norton Ghost RAR Backup File |
| r001 | Archive Files | |
| R01 | Archive Files | WinRAR Split Archive Part 1 |
| R01 | Miscellaneous Files | MicroStation Modification resource file |
| R02 | Archive Files | WinRAR Split Archive Part 2 |
| R03 | Archive Files | WinRAR Split Archive Part 3 |
| R03 | Backup Files | |
| R04 | Archive Files | Split Multi-volume RAR compressed file archive (part 6) |
| R05 | Archive Files | |
| R05 | Backup Files | |
| R06 | Archive Files | Split Multi-volume RAR compressed file archive (part 8) |
| R07 | Archive Files | |
| R07 | Backup Files | |
| R08 | Archive Files | Split Multi-volume RAR compressed file archive (part 10) |
| R09 | Archive Files | |
| R09 | Backup Files | |
| R1 | Archive Files | WinRAR Multi-Volume Archive Part 1 |
| R10 | Archive Files | |
| R10 | Backup Files | |
| R11 | Backup Files | |
| R11 | Archive Files | |
| R12 | Archive Files | |
| R12 | Backup Files | |
| R13 | Archive Files | Split Multi-volume RAR compressed file archive (part 15) |
| R13 | Backup Files | Norton Ghost rar file |
| R13 | 3D Graphics Files | |
| R14 | Archive Files | |
| R14 | Backup Files | |
| R15 | Audio Files | |
| R15 | Miscellaneous Files | |
| R16 | Archive Files | |
| R16 | Backup Files | |
| R17 | Archive Files | |
| R17 | Backup Files | |
| R18 | Archive Files | |
| R18 | Backup Files | |
| R19 | Archive Files | |
| R19 | Backup Files | |
| R1M | Audio Files | RealOne Streaming Media File |
| R2 | Archive Files | WinRAR Multi-Volume Archive Part 2 |
| R20 | Archive Files | |
| R20 | Backup Files | |
| R21 | Archive Files | WinRAR Split Archive Part 21 |
| R21 | Backup Files | |
| R22 | Archive Files | |
| R22 | Backup Files | |
| R23 | Archive Files | |
| R23 | Backup Files | |
| R24 | Archive Files | |
| R24 | Backup Files | |
| R25 | Archive Files | |
| R25 | Backup Files | |
| R26 | Archive Files | |
| R26 | Backup Files | |
| R27 | Archive Files | |
| R27 | Backup Files | |
| R28 | Archive Files | |
| R28 | Backup Files | |
| R29 | Archive Files | |
| R2W | Settings Files | Reflection Setting File |
| R30 | Archive Files | WinRAR Split Archive Part 30 |
| R31 | Archive Files | Split Multi-volume RAR compressed file archive (part 33) |
| R32 | Archive Files | Split Multi-volume RAR compressed file archive (part 34). |
| R33 | Archive Files | Split Multi-volume RAR compressed file archive (part 35) |
| R34 | Archive Files | |
| R35 | Archive Files | |
| R36 | Archive Files | |
| R36 | Audio Files | |
| R3D | Video Files | REDCODE Video File |
| R3T | Document Files | |
| R40 | Archive Files | Split Multi-volume RAR compressed file archive (part 42) |
| R44 | Archive Files | |
| R45 | Archive Files | |
| R46 | Archive Files | |
| R47 | Archive Files | |
| R48 | Archive Files | |
| R53 | Archive Files | |
| R62 | Archive Files | |
| R68 | Archive Files | |
| R70 | Archive Files | |
| RA | Audio Files | Real Audio File |
| RAD | Raster Image Files | |
| RAD | Data Files | |
| RAD | Text Files | |
| RAD | Miscellaneous Files | |
| RAD | Audio Files | Reality AdLib Tracker 2 file |
| RAF | Image Files | Fuji RAW Image File |
| RAKE | Programming Files | Project and Global Rake Task Files |
| RAL | Data Files | WinRail Track Design File |
| RAM | Audio Files | Real Audio Metadata File |
| RAP | Data Files | Magix Music Studio rap file |
| RAP | Document Files | Rapidocs document file |
| RAP | Plugin Files | Redox DAS plug-in. |
| RAP | Settings Files | RunAs Professional configuration. |
| RAP | Miscellaneous Files | RapAnalyst knowledge filter file |
| RAP | Miscellaneous Files | Scientific Workplace wrap file |
| RAR | Archive Files | WinRAR Compressed Archive |
| RAR_ | Archive Files | Egis encrypted RAR file |
| RAS | Raster Image Files | Sun Raster Graphic |
| RAS | Game Files | Remedy Archive System File |
| RAST | Image Files | Sun raster bitmap image file |
| RAST | Game Files | Spore texture, model file |
| RATDVD | Disk Image Files | RatDVD Disk Image |
| RAV | Data Files | Easy Timesheets file |
| RAV | Miscellaneous Files | Rising Antivirus quickscan file |
| RAV | Document Files | Rave Reports project file. |
| RAV | Game Files | FIFA 2001 data environment file |
| RAV | Programming Files | Rave Reports Project File |
| RAW | Image Files | Raw Image Data File |
| RAW | Audio Files | Raw Audio Data |
| rawraw | Miscellaneous Files | |
| RAX | Audio Files | Real Music Store Audio File |
| RAY | 3D Graphics Files | Rayshade Image |
| RB | Programming Files | Ruby Source Code |
| RB | Document Files | RocketEdition eBook file |
| RB | Settings Files | Rosebud configuration profile |
| RB1 | Data Files | R:Base Data File |
| RB1 | Data Files | Trend Anti-Virus Backup file |
| RB4 | Page Layout Files | Resume Builder 4 File |
| RB4 | Settings Files | RobotWorks Parameters File |
| RBC | Programming Files | Rembo-C Script |
| RBC | Backup Files | Retrospect Backup Catalog File |
| RBC | Data Files | Easy Resume Creator Pro resume file |
| RBF | Backup Files | Retrospect Backup File |
| RBF | Database Files | Redatam Binary File |
| RBF | Backup Files | Windows Installer Rollback File |
| RBK | Backup Files | Windows 95 Registry Backup File |
| RBP | Programming Files | Real Studio Project File |
| RBR | Backup Files | Wordnet Backup File |
| RBS | Audio Files | Rebirth Song File |
| RBS | Backup Files | Windows Installer Rollback Script |
| RBS | Audio Files | MP3 Ringtone File |
| RBT | Data Files | LEGO MINDSTORMS NXT Program |
| RBVCP | Programming Files | Real Studio Version Controlled Project |
| rbw | Programming Files | Ruby file |
| RBX | Executable Files | Rembo-C Compiled Script |
| RBXL | Game Files | ROBLOX Location |
| RBXM | Game Files | ROBLOX Model |
| RBXS | Programming Files | ROBLOX Script |
| RC | Programming Files | Resource Script |
| RC | Settings Files | Mozilla (Netscape) subscription information |
| RC | Settings Files | Emacs configuration record file |
| RC | Game Files | Left 4 Dead file |
| RC1 | System Files | Samsung Mobile Device Firmware File |
| RC2 | Audio Files | ReCycle audio loop |
| RC2 | Programming Files | Visual Studio Resources File |
| RC2 | System Files | Samsung Mobile Device Firmware File |
| RC2 | Miscellaneous Files | Registry File |
| RCD | Data Files | Arcade File |
| RCD | CAD Files | LEGO MINDSTORMS Recording File |
| RCD | Video Files | pcAnywhere Recorded Session File |
| RCF | Settings Files | SonicWALL VPN Configuration File |
| RCF | Game Files | Colin McRae car race configuration file |
| RCG | Data Files | Recog Character Recognition Set |
| RCL | Disk Image Files | Easy CD and DVD Creator 6 Project |
| RCL | Raster Image Files | Recolored Project File |
| RCO | System Files | PlayStation Portable Resource File |
| RCP | Audio Files | Recomposer MIDI Sequencer Music file |
| RCP | Data Files | Rich Chart Builder project file |
| RCS | 3D Graphics Files | RandomControl Scene File |
| RCS | Data Files | SaralTDS eTDS software annual report |
| RCS | Settings Files | RAD Developer color scheme |
| RCT | Settings Files | Visual Studio Resource Template |
| RCV | Temporary Files | Eudora temporary download file |
| RCX | Data Files | REDCINE-X Project File |
| RCY | Audio Files | ReCycle 1.x Document |
| RDA | Data Files | R Data File |
| RDA | Game Files | Anno 2070 Data File |
| RDATA | Data Files | R Workspace File |
| RDB | Data Files | N64 ROM Database |
| RDB | Backup Files | Retrospect Backup Set |
| RDB | Video Files | Wavelet Video Images File |
| rdc | Miscellaneous Files | |
| rdc | GIS Files | IDRISI Raster Documentation File |
| RDF | Settings Files | Resource Description Framework File |
| RDF | Spreadsheet Files | Report Definition File |
| RDF | Disk Image Files | PowerProducer Disc Image |
| RDF | GIS Files | ArcGIS Report Document File |
| RDF | CAD Files | Relux Project File |
| RDI | Encrypted Files | Rohos Disk Image File |
| RDI | Settings Files | Red Dragon ISecure Settings File |
| RDL | Data Files | Corel Paradox file |
| RDL | Vector Graphics Files | MicroStation Redline File |
| RDL | Document Files | SQL Server Reporting Services report definition language |
| RDL | Game Files | Descent registered level file. |
| RDL | System Files | Symbian recogniser library. |
| RDL | Audio Files | RadioDestiny radio stream |
| RDL | Image Files | Bentley MicroStation redline file |
| RDLC | Programming Files | Visual Studio Client Report Definition File |
| RDO | Settings Files | Xerox Rawster Document Object File |
| RDP | Settings Files | Remote Desktop Configuration File |
| RDS | 3D Graphics Files | Ray Dream Studio Scene File |
| RDX | Data Files | Reflex Data File |
| README | Text Files | Readme File |
| REALMEDIA | Miscellaneous Files | |
| REB | Programming Files | REBOL Script File |
| REB | Data Files | Reimbursement Tracker Data File |
| REC | Game Files | Deluxe Ski Jump 3 hill record file |
| REC | Video Files | Topfield PVR Recording |
| REC | Data Files | EpiData data file |
| REF | Data Files | Microsoft Train Simulator Reference File |
| REF | GIS Files | IDRISI Raster Image Reference File |
| REFERENCE | Data Files | Budget In Brief Reference File |
| reg | System Files | Registry File |
| reg | Settings Files | Registration Information File |
| REGTRANS-MS | System Files | Registry Transaction Log File |
| REL | Data Files | Norton Internet Security Log File |
| RELS | Document Files | |
| REM | Data Files | Borland Delphi memory swap file |
| REM | Miscellaneous Files | BlackBerry Encrypted Data File |
| REP | Game Files | StarCraft Replay File |
| REP | Document Files | ACT! report template file |
| REP | Document Files | Complete Works report file |
| REP | Document Files | BusinessObjects report file |
| REP | Game Files | Grand Theft Auto Replay File |
| REP | Miscellaneous Files | AAICWpro autoresponder file |
| RES | Programming Files | C++ Complied Resource Script |
| RES | Game Files | Game resource file |
| RES | Programming Files | Windows Resource File |
| RES | Settings Files | Valve Steam Skin Resource File |
| RES | Miscellaneous Files | SHELX output file |
| RES | Miscellaneous Files | SNNS result |
| RESMONCFG | Settings Files | Resource Monitor Configuration File |
| RESOURCES | Programming Files | Visual Studio Resource File |
| RESW | Programming Files | Windows Resources File |
| RESX | Programming Files | .NET Managed Resources File |
| RET | Data Files | BusinessObjects Template |
| REV | Miscellaneous Files | Revolution MetaCard stack file |
| REV | Document Files | Adobe FrameMaker document file |
| REV | Archive Files | RAR Recovery Volume Set |
| REV | Miscellaneous Files | Workshare Synergy file |
| REX | Audio Files | ReCycle Loop File |
| REX | Miscellaneous Files | |
| REZ | Miscellaneous Files | FirstClass Resource File |
| REZ | Plugin Files | Escape Velocity Plug-in File |
| REZ | Game Files | Lithtech Game Engine Resource File |
| RF | Document Files | Adobe FrameMaker document |
| RF | Video Files | RealFlash clip |
| RF | 3D Graphics Files | Autodesk rainfall frequency data file |
| RF1 | Data Files | Retirement Forecast File |
| RFA | 3D Graphics Files | Revit Family File |
| RFA | Game Files | Battlefield 1942 Game Package |
| RFB | Miscellaneous Files | RoboForm Bookmark File |
| RFC | Miscellaneous Files | RoboForm Contact File |
| RFD | Data Files | |
| RFD | Game Files | Emperor: Battle for Dune Data File |
| RFGS_PC | Game Files | Red Faction: Guerilla Saved Game File |
| RFL | Audio Files | Reason ReFill Sound Bank |
| RFM | Game Files | rFactor Modification File |
| RFN | Miscellaneous Files | RoboForm Safenote File |
| RFO | Data Files | RoboForm Option File |
| RFP | Miscellaneous Files | RoboForm Passcard File |
| RFQ | Settings Files | RoboForm SearchCard File |
| RFT | 3D Graphics Files | Revit Family Template File |
| RFT | Miscellaneous Files | RoboForm Identity File |
| RFT | Text Files | Revisable Form Text Document |
| RFW | System Files | Rockchip Firmware File |
| RGB | Image Files | RGB Bitmap |
| RGB | Image Files | Q0 Image File |
| RGBA | Image Files | |
| RGE | Miscellaneous Files | R.A.G.E. Driver |
| rgh | Miscellaneous Files | |
| RGN | GIS Files | Garmin Regional Map File |
| RGO | Data Files | RepliGo File |
| RGP | Game Files | RealArcade Game Package |
| RGS | Executable Files | Registry Script |
| RGSS2A | Game Files | RPG Maker VX RGSS Encrypted Archive |
| RGU | Data Files | |
| RGU | System Files | |
| RGX | Miscellaneous Files | ReaGeniX Code Generator symbol table file |
| RGX | Miscellaneous Files | IFF RGFX bitmap |
| RH | Programming Files | C++ resource header file |
| RH | Audio Files | RobHubbard audio file |
| RH | 3D Graphics Files | Right Hemisphere 3D drawing file |
| RHISTORY | Data Files | R History File |
| RHP | Plugin Files | Rhino Plug-in |
| RHTML | Web Files | Ruby HTML Web Page |
| RI | Game Files | |
| RI | Data Files | |
| RIC | Raster Image Files | NXT Image File |
| RIF | Audio Files | Rockwell ADPCM format |
| RIF | Image Files | Painter Raster Image File |
| RIFF | Image Files | |
| RIFF | Audio Files | |
| RIG | 3D Graphics Files | Antibody Model Rig File |
| RIM | Game Files | BioWare Resource Image File |
| RIP | Audio Files | Hit'n'Mix Audio Mashup File |
| RIS | Text Files | Research Information Systems Citation File |
| RISE | Programming Files | RISE Editor Model File |
| rix | Raster Image Files | ColoRIX Image |
| RJS | Miscellaneous Files | RealJukebox Skin File |
| RJS | Web Files | Ruby Javascript File |
| rk | Archive Files | WinRK File Archive |
| RKP | Game Files | Rockchip MP4 Player Game |
| RKP | Settings Files | RemoteKeys profile file |
| RKP | Miscellaneous Files | REKO PC cardset |
| RKV | Archive Files | |
| RL | Data Files | R.viewer List File |
| RL2 | Video Files | voyeur game RL2 files |
| RL4 | Image Files | |
| rl8 | Miscellaneous Files | |
| RLA | Raster Image Files | Alias/Wavefront bitmap image |
| RLA | 3D Graphics Files | 3ds Max rendered graphic file |
| RLB | Image Files | |
| RLC | Data Files | |
| RLC | Raster Image Files | |
| RLC | CAD Files | LoopCAD project file |
| RLE | Raster Image Files | Run Length Encoded Bitmap |
| RLE | Image Files | Bitmap graphics - 4bit or 8bit ADEX file |
| RLE | Image Files | Utah raster bitmap image |
| RLL | Settings Files | Microsoft Resource Library |
| RLL | Data Files | Resource Hacker resource library file |
| RLL | Miscellaneous Files | IP-EPS file |
| RLL | Data Files | SQL Server resource library file |
| RM | Video Files | Real Media File |
| RMD | Document Files | Microsoft RegMaid document file. |
| RMD | Video Files | RealPlayer Media File |
| RMD | Miscellaneous Files | Report Miner file. |
| RMD | Data Files | Reference Manager Data File |
| RMD | Database Files | Reference Manager database file |
| RMD | Video Files | RED Metadata File |
| RMD | Document Files | IMail Server mail message |
| RMF | Miscellaneous Files | |
| RMF | Audio Files | Rich Music Format Audio File |
| RMF | Miscellaneous Files | Rich Map Format |
| RMGB | Data Files | RootsMagic Family Tree Backup Files |
| RMGC | Data Files | RootsMagic Family Tree Files |
| RMI | Audio Files | RMID MIDI File |
| RMI | Audio Files | Java remote method invocation file |
| RMJ | Audio Files | Real Media Jukebox Audio File |
| RML | CAD Files | Redline Markup Language File |
| RML | Miscellaneous Files | Elixir Report Template File |
| RML | Settings Files | FTG Configuration File |
| RML | Programming Files | Redline Markup Language file |
| RMM | Audio Files | RAM Meta File |
| RMP | Miscellaneous Files | |
| RMP | Audio Files | |
| RMP | Data Files | |
| RMP | Miscellaneous Files | ReportMachine Prepared report |
| RMR | Page Layout Files | ResumeMaker File |
| RMS | 3D Graphics Files | Dynamite VSP Road Marking Object Style |
| RMS | Video Files | Secure Real Media File |
| RMS | Settings Files | Java Application Settings File |
| RMS | 3D Graphics Files | AutoCAD river modelling system data file |
| RMS | Game Files | Rise of Nations random file |
| RMSKIN | Settings Files | Rainmeter Skin File |
| RMT | System Files | Router Firmware File |
| RMUF | Data Files | Alpha Five Runtime License File |
| RMVB | Video Files | RealMedia Variable Bit Rate File |
| RMX | Database Files | |
| RMX | Audio Files | RealJukebox Format |
| RN | Miscellaneous Files | |
| RNC | Programming Files | RELAX NG Compact Syntax File |
| RNC | Archive Files | RNC ProPack Archive |
| RND | 3D Graphics Files | AutoCAD Autoshade rendering slide |
| RND | Miscellaneous Files | PGP Random Seed File |
| RND | Miscellaneous Files | Random Hash Data File |
| RNG | Data Files | RELAX NG File |
| RNG | Audio Files | Nokia Composer Ringtone |
| RNL | Image Files | |
| RNQ | Data Files | Renque Model File |
| RNS | Audio Files | Reason Song File |
| RNX | Settings Files | RealPlayer Settings File |
| RO | Document Files | ROwin project file |
| ROCA | Data Files | RIB office Compressed Archive |
| ROCK | Plugin Files | Rockbox Plug-in |
| ROD | Data Files | Actuate Report Object Design File |
| ROD | Database Files | RIB office Database File |
| RODL | Programming Files | RemObjects Definition Language File |
| ROG | Data Files | Roger 2 Input Data File |
| ROI | Data Files | Shark Sales System Data File |
| ROI | Data Files | Report Object Instance |
| ROL | Miscellaneous Files | |
| ROL | Audio Files | Ad Lib Synthesized Instrument |
| ROM | Game Files | N64 Game ROM File |
| ROM | Miscellaneous Files | Read Only Memory Image |
| ROQ | Video Files | Id Software Game Video |
| ROS | Game Files | BattleScribe Roster Editor File |
| ROT | Game Files | Homeworld 2 Graphics File |
| ROTEST | Programming Files | RemObjects SDK Test File |
| ROTESTRESULT | Programming Files | RemObjects SDK Test Results File |
| ROU | Data Files | Gerber Route File |
| ROV | Miscellaneous Files | Report Object Variable |
| ROW | Miscellaneous Files | |
| ROW | Data Files | |
| ROX | Data Files | Roxio Project File |
| ROX | Executable Files | Actuate Report Object Executable File |
| ROXIO | Data Files | Roxio Project |
| rp | Miscellaneous Files | |
| RP2 | Game Files | RetroPlatform Player Program Archive |
| RP9 | Archive Files | RetroPlatform Disk Image Archive |
| RPA | Miscellaneous Files | |
| RPA | Archive Files | |
| RPA | Data Files | RIB Project Archive File |
| RPB | Settings Files | Radmin Phonebook File |
| rpbm | Miscellaneous Files | |
| RPC | Settings Files | RAR Password Cracker project file |
| RPC | Document Files | ACT! report file |
| RPD | Data Files | Roleplay Designer Data File |
| RPD | Database Files | RIB Project Database File |
| RPF | Game Files | Grand Theft Auto 4 Data File |
| RPF | Raster Image Files | Rich Pixel Format File |
| RPG | Programming Files | The RPG programming language file |
| rpgm | Miscellaneous Files | |
| RPJ | Executable Files | Real Pac Batch Job File |
| RPK | Settings Files | RadLight Media Player Skin |
| RPK | Backup Files | NeverForget backup reminder file |
| RPL | Game Files | Toribash Replay File |
| RPL | Video Files | ARMovie video file |
| RPLIB | Plugin Files | Axure RP Widget Library File |
| RPM | Archive Files | Red Hat Package Manager File |
| RPM | Plugin Files | RealPlayer Plug-in |
| RPMSG | Miscellaneous Files | Outlook Restricted Permission Message |
| RPN | Data Files | |
| rpnm | Miscellaneous Files | |
| RPP | Data Files | REAPER Project File |
| rppm | Miscellaneous Files | |
| RPPRJ | Data Files | Axure RP Shared Project File |
| RPS | Settings Files | 3ds Max Render Preset Settings |
| RPT | Data Files | Crystal Reports File |
| RPT | Text Files | Generic Report |
| RPT | Miscellaneous Files | AccountEdge Report |
| RPTR | Page Layout Files | RafflePrinter Document |
| RPX | Miscellaneous Files | |
| RPXM | Miscellaneous Files | |
| RPY | Programming Files | Python Script |
| RPY | Game Files | 1.Touhou Project Replay File2.Ren'Py Script |
| RPYC | Game Files | Ren'Py Compiled Script |
| RRA | Temporary Files | Windows Installer temporary file file |
| RRA | CAD Files | vRigger Rigging Gear File |
| RRD | Data Files | ERDAS IMAGINE file |
| RRD | Database Files | RRDtool Round-Robin database |
| RRD | Document Files | RapidReader document |
| RRD | GIS Files | Reduced Resolution Dataset File |
| RRD | Miscellaneous Files | WAsP roughness description file |
| RRR | Backup Files | Registry Mechanic Backup File |
| RRR | Settings Files | Rhapzodé Resource Repository |
| RRT | Data Files | Rhapzode Resource Template |
| RS | Archive Files | RS archive |
| RS | Document Files | RapidSketch sketch document |
| RS | CAD Files | RapidSketch Document |
| RS | Raster Image Files | Sun Raster Graphic |
| RS | Miscellaneous Files | Amiga reassembler resource data file |
| RS | Game Files | Xpand Rally Extreme replay file |
| RS | Miscellaneous Files | EROSION 3D event file |
| RSA | Miscellaneous Files | RSA Certificate File |
| RSA | Miscellaneous Files | Minecraft JAR Codesign File |
| RSB | Image Files | Red Storm Bitmap File |
| RSB | Data Files | ReliaSoft BlockSim file |
| RSC | Data Files | Macintosh Icon resource file |
| RSC | Data Files | Symbian Application Compiled Resource File |
| RSC | Data Files | Maptitude GISDK compiled resource file |
| RSC | Miscellaneous Files | MicroStation Symbology Resources |
| RSD | Database Files | RealSQL Database File |
| RSD | Data Files | Rosetta Stone Data File |
| RSDF | Encrypted Files | RapidShare Download File |
| RSF | Data Files | Riky's Soft Document |
| RSF | Document Files | NEi Nastran results summary file |
| RSF | Settings Files | Reflection setting file |
| RSF | Miscellaneous Files | Mediafour MacDrive Macintosh resource fork file |
| RSF | Miscellaneous Files | WAsP resource data file |
| RSID | Miscellaneous Files | |
| RSM | Data Files | Delphi remote debugging symbols file |
| RSM | Programming Files | ArchiCAD Geometric Description Language file |
| RSM | Game Files | RuneSword 2 game file |
| RSM | Page Layout Files | WinWay Resume Deluxe Resume File |
| RSM | Data Files | ARIS Report Script Model File |
| RSM | Miscellaneous Files | WinWay Deluxe resume file |
| RSM | Miscellaneous Files | ReliaSoft MPC 3 file |
| RSN | Audio Files | Reason Project File |
| RSO | Audio Files | NXT Brick Audio File |
| RSOURCE | Programming Files | R source code files |
| RSP | Data Files | RSLogix PLC Program File |
| RSP | Programming Files | Rapport script file |
| RSR | Image Files | Poser Model Preview File |
| RSS | Web Files | Rich Site Summary |
| RSS | Raster Image Files | PlanMan image |
| RSS | Programming Files | Rockwell Logix 500 SLC-5 software file |
| RSS | Programming Files | Symbian Application Resource File |
| RST | Text Files | reStructuredText File |
| RST | Data Files | IBM Voice Type languages scripts data file |
| RST | GIS Files | IDRISI Raster Image |
| RSV | Data Files | RSView32 Project File |
| RSW | Data Files | R&R SQL Report Writer Report File |
| RSX | Video Files | RED Metadata XML File |
| RT | Web Files | RealText Streaming Text File |
| RTC | Miscellaneous Files | Microsoft Office Live Meeting Connection File |
| RTE | Archive Files | RTE Encoded File |
| RTE | Data Files | Revit Project Template |
| RTE | Data Files | Navigation Route |
| RTF | Document Files | Rich Text Format File |
| RTFD | Text Files | Rich Text Format Directory File |
| RTI | Audio Files | Real Tracker Instrument |
| RTL | Settings Files | Yahoo! Instant Messenger ringtone settings file |
| RTL | Text Files | |
| RTL | Executable Files | Runtime library file |
| RTL | Image Files | HP Raster Transfer Language bitmap image file |
| RTM | Miscellaneous Files | LabVIEW Run-Time Menu File |
| RTM | Data Files | ReliaSoft RGA file |
| RTP | Data Files | Gromacs Residue Topology Parameter File |
| RTP | Data Files | TurboTax Update File |
| RTPI | Raster Image Files | |
| RTS | Video Files | QuickTime Real-Time Streaming Format |
| RTS | Settings Files | Royal TS Remote Connection File |
| RTS | Programming Files | Resource Tuner Console script file |
| RTS | Audio Files | Real Tracker Sample |
| RTS | Video Files | RealPlayer Streaming Media |
| RTSP | Video Files | Apple QuickTime real-time streaming protocol file |
| RTX | Text Files | |
| RTX | Audio Files | |
| RTX | Data Files | |
| RT_ | Archive Files | Microsoft Windows Winhelp compressed file. |
| RU | Programming Files | Java Russian Font Properties File |
| RU | Miscellaneous Files | Javasoft Jre 1.3 library file |
| RUF | System Files | Samsung DVD and Blu-ray Player Firmware File |
| RUL | Programming Files | InstallShield Rules File |
| RUL | Data Files | |
| RULESET | Settings Files | Visual Studio Code Analysis Rule Set File |
| RUM | Video Files | Bink Video Subtitle File |
| RUN | Executable Files | Linux Executable File |
| RUN | Game Files | Rune Map File |
| RUN | Data Files | Runscanner Scan File |
| RUN | Executable Files | ISAPI Loader file |
| RV | Video Files | Real Video File |
| RVDATA | Game Files | RPG Maker VX Data File |
| RVG | Raster Image Files | RVG X-ray Image |
| RVP | Data Files | Microsoft Scan configuration file |
| RVPROJ | Game Files | RPG Maker VX Project File |
| RVS | Temporary Files | |
| RVS | Game Files | |
| RVT | Programming Files | Apache Rivet Tcl file |
| RVT | Data Files | Revit Project File |
| RVX | Audio Files | Real Protected Video File |
| RW2 | Raster Image Files | Panasonic RAW Image |
| RWA | Data Files | ReliaSoft Weibull++ 6 file |
| RWG | Data Files | Random Word Generator Project File |
| RWL | Raster Image Files | Leica RAW Image |
| RWS | Miscellaneous Files | |
| RWX | Miscellaneous Files | |
| rwz | Miscellaneous Files | Outlook Rules Wizard File |
| RX2 | Audio Files | REX2 Audio File |
| RXC | Data Files | |
| RXC | Miscellaneous Files | Roxio Certificate File |
| RXDATA | Game Files | RMXP Data File |
| RXE | Executable Files | Lego Mindstorms NXT Executable Program |
| RXT | Plugin Files | Retrospect extension file |
| rz | Archive Files | Rzip Compressed File |
| RZB | Data Files | Red Zion Book File |
| RZK | Miscellaneous Files | |
| RZMMPJ | Video Files | Youtube movie maker project file |
| RZR | Archive Files | |
| RZR | Data Files | |
| RZS | Archive Files | Red Zion Security File |
| RZX | Encrypted Files | File Crypt Encrypted File |
| RZX | Emulator Files | ZX Spectrum emulator input-recording format |
Open File Support
PC Tuneup Maestro with open file support will enable your PC to open more than 6,000 file types, with just a couple clicks.