| plh | Corel Paint Shop Pro Preset |
| plist | HandBrake Video Settings Data |
| plist | QuickTime Preferences File |
| plrc | SWI-Prolog Personal Initialisation Data |
| pls | PicoLog Settings |
| pltcfg | Bentley MicroStation Printer Driver Configuration |
| pmj | Pegasus Mail Configuration Data |
| pmk | Pegasus Mail Keyboard Settings Data |
| pmsettings | Griffin PowerMate Settings Data |
| pnca | ProNest Configuration Archive |
| pnd | Pegasus Mail Mailbox Configuration Data |
| pnp | Pegasus Mail POP3 Filter Rules |
| pnst | RealPlayer Settings Data |
| poc | Codesoft Printer Object Configuration |
| popupskin | Miranda IM Pop-up Skin Settings |
| pox | Autoslew Configuration |
| ppf | Corel Paint Shop Pro Soft Plastic Preset Data |
| ppg | Programmer's Notepad Workspace |
| ppr | PTC Creo PPRINT Settings Table |
| pptp | PPTP Client Options Data |
| pq | Picturesque Settings |
| pra | Windows Media 9 Plug-in Profile |
| 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 |
