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    Letter R: Data Formats & File Extensions

    Find data file formats and file extensions that start with the letter R, or view thousands of file extensions and file formats in the complete list.

    With literally thousands of data file formats employed by Windows and Window-based apps, keeping track of all the file extensions employed by your software applications and programs can be quite a challenge. Fortunately, Webopedia’s Complete List of Data File Formats and File Extensions makes it quick and easy to sift through thousands of file extensions and data file formats to find exactly what you need. You can peruse the full list or search for data formats and file extensions based on the letter they start with from the table below.

    Data File Formats that Begin with the Letter ‘R’

    .r Ratfor (FORTRAN preprosessor) file
    .r33 Train Simulator Game file
    .r8 Raw graphics (one byte per pixel) plane one (PicLab)
    .r8p Pcl 4 bitmap font file (Intellifont)
    .ra Music (RealAudio)
    .ram Ramfile (RealAudio)
    .rar Compressed file archive created by RAR (rar1_402.exe)
    .ras Sun Rasterfile graphics
    .rat Datafile (RATS)
    .raw Raw RGB 24-bit graphics
    .rb Ruby on Rails class file
    .rbf Windows Installer Rollback file
    Datafile (Rbase)
    .rbn Richard’s Bridge Notation
    Real Sound file
    .rbs Windows Installer Rollback Script file
    .rbx Format for playing RapidPlayer v3.0 ActiveX Control in Explorer
    .rc Resource script (Visual C/C++ – Borland C++)
    Configuration (emacs)
    .rcf Rhapsody Storage file
    .rcg Netscape newsgroup file (netsc.rcg)
    .rcp Recomposer’s MIDI Sequencer Music file
    .rcx Lego Mindstorms Robotics Invention System
    .rdb TrueVector Rules database
    ZoneAlarm Rules database
    .rdf Compiled UIC source code (Geoworks UI Compiler)
    .rdi Device-independent bitmap file (RIFF RDIB format)
    .rds Ray Dream Studio file
    .rdx Datafile (Reflex)
    .rec Datafile (EpiInfo)
    Record file (Sprint)
    Recorded macro file (Windows 3.x)
    .red Path info (Clarion Modula-2)
    .ref Cross-reference
    .reg OLE Registration (Windows 3.x)
    Registration (Corel programs)
    .rels Microsoft Office 2007 Relationships
    .rem Encrypted Data file
    .rep QWK reader reply file
    Report (Report Designer – CodeReporter – DataBoss)
    .req Request
    .res Compiled resource (MS C/C++ – Borland C++)
    Dbase resources (dBASE IV)
    .rev Revision file (Geoworks)
    .rex Rexx source code file
    .rex Report definition (Oracle)
    .rez Resource file
    .rf Sun raster graphics
    .rfl Roll Forward Log file
    .rft Dca/RFT Revisable Format Text file (IBM DisplayWrite 4.0-5.1)
    .rgb Sgi RGB image file (SDSC Image Tool)
    .rgi RealArcade Game Installer
    .rgp RealArcade Game Package
    .rgs RealArcade Game Installer
    .rgx Symbol tables etc. info (ReaGeniX code generator)
    .rh Resource header file (Borland C++ 4.5)
    .rhp Rhapsody Notation Program File Format
    .ri Data (Lotus 1-2-3)
    .rib Graphics in Renderman format (3DReality)
    .ric Fax (Ricoh)
    .rif Riff bitmap graphics (Fractal Design Painter)
    .rip Graphics (Remote Access)
    .rix Bitmap graphics (ColorRIX VGA Paint)
    .rl4 Bitmap graphics
    .rl8 Bitmap graphics
    .rla Wavefront raster image file (SDSC Image Tool)
    .rlb Data (Harvard Graphics Win) hgw.rlb
    .rlc Graphics 1bit/pixel scanner output
    .rle Utah Run Length Encoded raster graphic (SDSC Image Tool)
    .rlz Realizer source code file (CA-Realizer)
    .rm RealMedia file
    .rmf Rich Map Format
    Rich Music format
    .rmi Midi file (RIFF RMID format)
    .rmj Real Jukebox file
    .rmk Makefile (Clipper RMake)
    .rmm RealPlayer file
    .rmr Resume Maker file
    .rms Secure Real Media file
    .rmvb Video file for Realplayer
    .rm RealMedia
    .rmvb Real Media video file
    .rmx RealJukeBox MP3 file
    .rn Xpl program for Nota Bene users
    .rnd Rendering Slide (AutoCAD AutoShade)
    .roi Actuate ReportBlast file
    .rno Runoff file (VAX)
    .rol Fm music Adlib Music File (Roland)
    .rpd Database (RapidFile)
    RosaPro file
    RPV Printing System file
    .rpl Text document (Replica)
    .rpm RedHat Package Manager
    RealMedia Player file
    RunPaint Multicolor Graphic
    .rps Propellerhead Software Reason Song
    .rpt Report
    .rrd ERDAS Imagine file
    .rs Data file (Amiga Resource – Reassembler)
    .rs_ Resource fork of a Macintosh file (Mac-ette)
    .rsb Red Storm Image Format
    .rsc Resource file
    .rsm ReliaSoft MPC 3
    RuneSword II Game
    WinWay Deluxe Resume file
    .rsp Response file
    .rss Rockwell Logix PLC file
    .rst ANSYS Results
    ReliaSoft BlockSim
    .rsw ReliaSoft BlockSim
    .rtc Live Meeting Connection file
    .rtf Rich Text Format text file (many – Windows Word)
    Windows Help file script
    .rtl Run Time Library (NU 7.0)
    Text file
    .rtp Turbo Tax Update file
    RTPatch software update package data file
    .rts Runtime library file (CA-Realizer)
    .rtx Reliacast Audience Manager Turnstile
    Mobile Phone Ringtone
    .ru JavaSoft Library file
    .rul InstallShield
    .run RunScanner Saved file
    .rv RealVideo Video file
    .rvb Rhinoscript file
    .rvp MS Scan Configuration file
    .rvw Review
    .rwg Random Word Generator List file
    .rws Resource Workshop data file (Borland C++)
    .rwx Script (RenderWare)
    .rwz MS Outlook Rules Wizard file
    .rzk Red Zion File Crypt (password file)
    .rzr in-sync Speed Razor Project file
    .rzx in-sync Speed Razor Project file
    Red Zion File Crypt (encrypted file)

    Recommended Reading: An Introduction to Data File Formats and Their File Extensions

    This article was last updated on April 14, 2012