| rs8 | ProSource Data |
| rscn | Caligari TrueSpace Exported Scene |
| rsc_tmp | AusLogics BoostSpeed Temporary Rescue Data |
| rsd | Altair FEKO Cable Harness Geometry Data |
| rsd | RadioSure Stations Data |
| rsd | Resort Software Database |
| rsd | RuneScape Demon Data |
| rsdb | Resort Software Database |
| rsdf | RapidShare Downloader Format File |
| rsdo | Reflection Desktop Customization Rules |
| rsds | Report Server Data Source |
| rsdx | RadioSure Stations Data |
| rse | RockSim Engine Database |
| rsed | ResEdit Data |
| rsf | Lego Mindstorms EV3 Robot Sound Data |
| rsf | Reflection Desktop Settings Data |
| rsf | WAsP Resource Data |
| rsfx | Reflection Desktop Data |
| rsh | 3DCS Statistics Results Data |
| rslkey | Resilio Sync Key |
| rsls | Resilio Sync Placeholder |
| rsm | CCNA Network Visualizer Data |
| rsmap | RSTuner RSMap Data |
| rsnp | RegSnap Data |
| rson | Readable Serial Object Notation Data |
| rsp | NPrinting Offline Activation Response Data |
| rsp | Workshare Synergy Response Data |
| rsr | 4D Database for Mac Plug-in |
| rsr | Poser Model Preview |
| rss | 3DCS Sensitivity Results Data |
| rssc | Claris Resolve Script |
| rst | ANSYS Results Data |
| rstm | eXtendable Wad Editor RSTM Data |
| rstp | ANSYS Results Data |
| rstyle | pCon.planner Render Style Data |
