File extensions beginning with r

File Extension Description
R Ratfor file
R Script file
R00, R01, ... Part of a multi-file RAR archive.
R2D Reflex 2 datafile
R3D Red Raw Video (raw video data created with a Red camera)
R8 Raw graphics file (one byte per pixel) plane one
R8P PCL 4 bitmap font file
RA Remote Access conf. files
RA0, RA1, ... Part of a multi-file RAR archive.
RAD 2-op FM music
RAD Radiance
RAL Remote Access Language file
RAM Ramfile
RAR Archive
RAS Graphics format
RAT Datafile (RATS)
RAW HSI raw graphic file
RAW PCM Signed Raw Sound File
RAW QRT graphic file
RAY Rayshade
RB Ruby Script file
RBF Datafile
RC Configuration file
RC Resource Compiler script file
RC Resource Script
RC UUPC configuration files
RC Windows resource compiler script
RCG Netscape newsgroup file (netsc.rcg)
RData Data file
RDF Compiled UIC source code
RDI Device-independent bitmap file (RIFF RDIB format)
RDP RDP connection
RDX Datafile
REC Archivation protocol
REC Datafile
REC Record file
REC Windows Recorder Macro File
RED Path info
RED REDuced nodelist file
REF Cross-reference
REG OLE Registration file
REG Registration information or key
REL Foreground job relocatable file
REM Remarks definition
REM Remarks
REP QWK reader reply file
REP Report file used by many applications
REP Report
REQ File request
RES Compiled resource
RES DBASE resources
RES Windows compiled resource package
REV Revision file
REX PharLab executable file (old format)
REX Report definition
REX Rexx language source file
REZ Resource file
RF Sun raster graphics file
RFT DCA/RFT Revisable Format Text file
RGB SGI RGB image file (RAW)
RGX Symbol tables etc. info
RH Resource header file
RH Windows resource file header
RHistory Command history logfile
RI Data
RIB Graphics (Renderman Interface Bytestream)
RIF RIFF bitmap graphics (Resource Interchange File Format)
RIP TeleGrafix Remote Imaging Protocol
RIX Graphics (ColoRIX Image File)
RL4 Bitmap graphics
RL8 Bitmap graphics
RLA Wavefront raster image file
RLB Data hgw.rlb
RLC Graphics 1bit/pixel scanner output
RLD Norton Commander 5.0 temp file
RLD OSIMapDef. RecLoad Definition
RLE Utah Run Length Encoded rasterfile graphic file
RLZ REALIZER source code file
RM Real Media
RMB data
RMI Windows alternate synthesized sound format
RMK Make file
RMVB Real Media Variable Bitrate
RN XPL program for Nota Bene users
RND Rendering Slide
Rnn Multi volume RAR archive
RNO Runoff file
ROL FM music Adlib Music File
ROM Read Only Memory image in emulators, AONs, etc.
RPB Data report file used by CP Backup
RPD Database
RPF AutoCAD pattern
RPL Text document
RPM Red Hat Package Manager (Command line driven package management system capable of installing, uninstalling, verifying, querying, and updating computer software packages in Red Hat Linux)
RPT Report file used by many applications
RRD Reduced Resolution Dataset
RS Data file
RSC Resource file
RSL Application - Project
RSL Resource Library used by PC Tools for Windows
RSP Response file (text file containing input expected by e.g. LINK)
RSP Response File
RSY FLEXIT Multishot Survey Raw Data file
RS_ Resource fork of a Macintosh file
RTF Rich Text Format text file (help file script)
RTL HP RTL graphic file
RTL Run-Time library
RTL Text file
RTP RTPatch software update package data file
RTS Realizer executable file
RTS Runtime library file
RUL Echo-conference rules
RUN PC Tools for Windows batch file
RUNZ pseudo-executable file, used in Portable Apps and software installers for Super OS
RUS Russian text
RV Mobile pricelist data file
RVW Review
RWS Borland Resource Workshop symbol file
RWS Resource Workshop data file
RWX Criterion RenderWare
RWX MEME Shape File
RWX Script
RWZ Microsoft Outlook Rules Wizard File
RXD Reflex 1 datafile
RZK File Crypt password file
RZX File Crypt encrypted file