| .rip |
Hit'n'Mix Audio Mashup File |
| .rad |
Radar ViewPoint Radar Data |
| .rgrp |
Pro Tools Region Group File |
| .rsf |
LEGO MINDSTORMS EV3 Robot Sound File |
| .rtm |
LabVIEW Run-Time Menu File |
| .rmm |
RAM Meta File |
| .rvx |
Real Protected Video File |
| .rcy |
ReCycle 1.x Document |
| .rmf |
Hammer Rich Map Format |
| .rta |
RoboHelp RTA Data File |
| .record |
GarageBand Records Audio File |
| .snd |
Sound File |
| .sib |
Sibelius Score |
| .sid |
Steam Game Data Backup File |
| .sfx |
Windows Self-Extracting Archive |
| .stm |
Exchange Streaming Media File |
| .stx |
Pinnacle Studio Project File |
| .saf |
Street Atlas USA Map File |
| .seq |
PowerTracks Pro Audio Project File |
| .sesx |
Adobe Audition Session File |
| .slp |
SpectraLayers Pro Project |
| .slx |
MathWorks Simulink Model File |
| .ssm |
Standard Streaming Metafile |
| .song |
AudioSauna Song File |