| prb | PSpice PROBE Configuration |
| pre | PWB Settings Data |
| pref | General Configuration |
| prefs | General Configuration |
| preset | Flare Graphic Effect Preset |
| prettierrc | Prettier Configuration |
| prexport | Adobe Premiere Pro Exported Settings Data |
| prf | Adobe Director Preferences Data |
| ClarisWorks Preferences Data |
| QuarkXPress Preferences Data |
| Xilinx CORE Generator Preferences |
| prf2 | Nord Modular G2 Performance Data |
| prfpset | Adobe Premiere Pro Effect Preset |
| prfs | Luppp Preferences Data |
| product | Eclipse IDE Product Settings |
| profile | Bash Shell Profile |
| profiles | Amaya Profiles Configuration |
| profimail | ProfiMail Settings |
| propdesc | Windows Search Property Description |
| properties | HSQLDB Configuration |
| Mozilla Firefox Properties Data |
| prov | Nokia Java S40 Phone Boot Settings Data |
| prp | Palace Server Configuration |
| prpreset | Adobe Premiere Pro Preset Data |
| prs | Batch and Print Pro Printer Settings Data |
| prst | Adobe InDesign Print Settings |
| prx | Windows Media Encoder Settings |
| psproj | PostSharp Project Configuration |
| pssc | Windows PowerShell Session Configuration |
| pst | Apple Logic Studio Plugin Settings Data |
| Autodesk PartMaker Postprocessor Configuration |
| psy | The Psychedelic Screen Saver Settings Data |
| ptg | PowerTeacher Gradebook Configuration |
| ptp | Avid Pro Tools Preperences Data |
| ptron | Proxomitron Configuration Data |
| pui | Foobar2000 Panels UI Configuration |
| pvc | Parallels Desktop Copied Configuration |
| pvs | Parallels Desktop Configuration File |
| pvx | ParaView XML Configuration |
| pw5 | PlanetPress Workflow Configuration |
| pw6 | PlanetPress Workflow Configuration |
| pw7 | PlanetPress Workflow Configuration |
| pxc | MatrikonOPC Server Configuration |
| pxg | PixRef Pro Configuration Data |
| pzs | Pizazz Plus Palette Settings Data |
| pzt | Pizazz Plus Transfer Data |
| q1 | WinAMP Equalizer Presets |
| q2 | WinAMP Equalizer Auto-load Presets |
| q5q | SuperBladePro Presets Data |
| q9q | SuperBladePro Presets Data |
| q9s | Mr Contrast Preset Data |
| qdr | Q-Dir Configuration |
| qemu | QEMU Configuration Data |
| qm4 | Qmail Options Data |
| qnc | Cliq Accessories Notepad Customization |
| qop | Autodesk 3D Studio MAX Quad Options |
| qsf | Altera Quartus II Settings File |
| qtes | QuickTime Export Settings |
| qvpn | QVPN Configuration |
| qwc | QuickBooks Web Connector Configuration |
| qwe | QWE Configuration Data |
| qyp | Quantec Yardstick Presets |
| qztp | QuickTime Preferences Data |
| r1w | Reflection UNIX and OpenVMS Settings |
| r2w | Reflection UNIX and OpenVMS Settings |
| r4w | Reflection UNIX and OpenVMS Settings |
| rak | CEM+ Rack Configuration Data |
| rap | RunAs Professional Configuration |
| rasi | Rofi Configuration Data |
| raskinplace | Raskin Place Layout |
| razerchroma | Razer Synapse 2 Chroma Profile |
| razersynapse | Razer Synapse Settings Data |
| rb | Rosebud Profile |
| rb4 | RobotWorks Parameters File |
| rc | Runtime Configuration File |
| rcds | STAAD Advanced Concrete Design Project Settings Data |
| rcf | SonicWALL VPN Configuration |
| rcm | Hyena Remote Control Configuration File |
| rcolor | Rhino 3D Color Options |
| rcps | STAAD Project Settings Data |
