| rt6 | SAS/GIS TIGER Additional Address and ZIP Code |
| rta | Adobe RoboHelp RTA Data File |
| rtb | Behemot Editor Binary 3D Scene |
| rtc | Autodesk AutoCAD Civil 3D Rating Curve Data |
| rtc | BrainVoyager QX Regions-of-interest TC Data |
| rtc | CARE-S InfoWorks Real Time Control Data |
| rtc | Microsoft Office Live Meeting Connection Data |
| rtc | Microsoft Office Live Meeting Settings Data |
| rtc | SOBEK Real-time Control Data |
| rtc-ms | Microsoft Office Live Meeting Connection Data |
| rtd | Autodesk Robot Structural Analysis Design |
| rtd | Retina Network Security Scanner Output |
| rtda | Microsoft Enterprise Voice Route Helper Data |
| rte | MicroSim PCBoard Routes Data |
| rte | RTEncoder Encoded Data |
| rte | SWAT Main Channel Input Data |
| rtf | QUANTA Residue Topology File |
| rtfenx | Egis Encrypted RTF Document |
| rtgs | Oracle FLEXCUBE RTGS Message |
| rth | ANSYS Results File |
| rth | Astrotite 200X Offline Data Repair File |
| rti2 | Indexed Rainbow Tables Data |
| rtk | Adobe RoboHelp RTK Data File |
| rtl | Yahoo! Messenger Ringtone Data |
| rtm | LabVIEW Run-Time Menu Data |
| rtm | Navicat Report File |
| rtm | ReliaSoft RGA RTM Data |
| rtmdl | IBM Rational Rose Realtime Model Data |
| rtmp | RTMP Stream Data |
| rtmpl | Metrel ES Manager Report Template |
| rtn | Carlson Survey Road Network File |
| rtn | MeasureMind 3D Data |
| rtp | GROMACS Residue Topology |
| rtp | Intuit TurboTax Software Update Data |
| rtp | Reactis Tester Parameter Data |
