| rtstn | Audials Station Data |
| rtsx | Royal TS v2 Document |
| rttex | Proton Texture Data |
| rtwsh | Audials Radiotracker Wishlist |
| ru | Java Russian Font Properties Data |
| ruel | Revo Uninstaller Pro Data |
| ruf | WRAP Regulated-unappropriated Flow Adjustment Data |
| rui | SPEFO Rectified Spectrum Data |
| ruj | Oracle Database Recovery-Unit Journal |
| ruk | Recorder 6 Rucksack Data |
| run | ISAPI Loader Data |
| run | Runscanner Scan Result |
| rup | IBM Rational Unified Process Data |
| rupaf | Revo Uninstaller Pro Activation Data |
| rus | Unreal Engine Russian Language Data |
| rut | Novapoint Grid File |
| rv | DataFlex Report View Data |
| rv | SPEFO Stellar Spectra Analysis RV Data |
| rv3 | NewsBin Pro Header Storage |
| rv4 | NewsBin Pro Header Storage |
| rv7 | Reason RV7 Data |
| rvk | GnuPG Revocation Key File |
| rvm | AVEVA Plant Design Management System Model |
| rvn | RVN Data |
| rvp | CNET CatchUp Data |
| rvq | Autodesk CFD Radiation Data |
| rvr | SPEFO Stellar Spectra Analysis RVR Data |
| rvt | IEX Workforce Management Report |
| rvt | Incite Media Assistant Data |
| rvw | ReviewMate Review Data |
