This page provides a list of those file extensions that start with .r. The information given below is a summary and further details can be found by clocking on the summary next to the file extension of interest.

.rPegasus Mail resource file
.r00Part of a RAR archive
.r01Part of a RAR archive.
.r02Part of a RAR archive.
.r03Part of a RAR archive.
.r04Part of a RAR archive.
.r05Part of a RAR archive.
.raRealAudio file.
.ramRealAudio meta file.
.rarCompressed file.
.rawRaw binary image file.
.rcResource file.
.rdfResource Description Framework file.
.rdiRemote desktop connection file.
.rdlDescent 1 level file.
.rdlcClient Report Definition file.
.rdoRawster document object.
.recRational Robot test script | ArcServe backup file | Audio-visual media file | RSA SecurID file | ProMash recipe file.
.regWindows registry file.
.resResource file.
.resx.Net resource file.
.rhSimplex database report.
.ripRIP script file | Hit'n'Mix Audio file.
.rl2Descent 2 level file.
.rmRealAudio video file.
.romMO5 cartridge image file.
.rpcRAR Password Cracker project file.
.rpmRedHat package manager.
.rpsDelphi translation repository file | SamStock journal file.
.rptCrystal Report file.
.rspResponse file | ODBC driver configuration file | Registry back-up file.
.rtRealText file.
.rtdRagTime data file.
.rtfRich text file.
.rtxRich text file.
.ruJavasoft JRE lib file | Media file.
.rulInstallScript file.
.rw5TDS Raw Data file.

For further information about the file extension please do click on the summary next to the file extension in the list above.

We would like this listing to be complete and comprehensive, but recognised that we may have missed one and that new file types are being used all the time. So if you know of a file type that we have missed that should be listed here then please let us know.