| pf2 | Canon Picture Style Settings |
| pfk | XTree Programmable Function Keys Settings |
| pie | GlovePIE Controller Script |
| pio | Avid Pro Tools IO Settings |
| pip | Microsoft Office Personalized Menu |
| pjsua | PJSUA Configuration |
| pjunoxl | TAL-U-NO-LX Preset File |
| plh | Corel Paint Shop Pro Preset |
| plist | QuickTime Preferences File |
| plrc | SWI-Prolog Personal Initialisation Data |
| pls | PicoLog Settings |
| pltcfg | Bentley MicroStation Printer Driver Configuration |
| pnca | ProNest Configuration Archive |
| pnd | Pegasus Mail Mailbox Configuration Data |
| pnp | Pegasus Mail POP3 Filter Rules |
| poc | Codesoft Printer Object Configuration |
| pox | Autoslew Configuration |
| ppg | Programmer's Notepad Workspace |
| pq | Picturesque Settings |
| pra | Windows Media 9 Plug-in Profile |
| pref | Configuration File |
| prefs | Configuration File |
| prexport | Adobe Premiere Pro Exported Settings Data |
| prf | Xilinx CORE Generator Preferences |
| prf2 | Nord Modular G2 Performance Data |
| prfpset | Adobe Premiere Pro Effect Preset |
| product | Eclipse IDE Product Settings |
| profile | Bash Shell Profile |
| profimail | ProfiMail Settings |
| propdesc | Windows Search Property Description |
| prst | Adobe InDesign Print Settings |
| prx | Windows Media Encoder Settings |
| psproj | PostSharp Project Configuration |
| pssc | Windows PowerShell Session Configuration |
| pvs | Parallels Desktop Configuration File |