| rpc | BillQuick Enterprise Invoice Data |
| rpc3 | NI Diadem RPC3 File |
| rpcp | Reason Resource Data |
| rpd | Oracle BI EE Repository |
| rpe | Performance Analyzer Data |
| rpf | CARE-S InfoWorks Runoff Parameters Data |
| rpk | RadLight Media Player Skin |
| rpk | Rail Simulator Package |
| rpn | Act! v2 Report Data |
| rpr | ArchiCAD Roof Properties |
| rpres | RStudio R Presentation |
| rpt | BI/Query Report Specification |
| rpt | Crystal Reports Report |
| rptdesign | Actuate BiRT Report Design |
| rptlibrary | Actuate BiRT Report Library |
| rpv | RealPlayer Visualization |
| rpx | Laservault Backup Index File |
| rpz | Crystal Reports Compressed Report |
| rq | SPARQL Query |
| rqb | Sybase PowerDesigner Requirements Model Backup |
| rql | RequisitePro Database Information File |
| rqm | Sybase PowerDesigner Requirements Model |
| rqns | Universal Pokemon Randomizer Data |
| rqx | RiALITY Quick Exchange Data |
| rra | vRigger Rigging Gear |
| rrd | RRDtool Round Robin Database |
| rrd | WAsP Roughness Description |
| rrd4j | RRD4J Graph Data |
| rrec | PlasmaEPG Recording State Data |
| rrf | MIKE 11 HD Results Data |
| rrg | JRiver Media Center License File |
| rro | Risk Reduction Overview Data |
| rrp | Vflo Precipitation Data |
| rrp | Running Time Logger Profile |
| rrp | Rhythm Rascal Project |
