| pk7 | Casio WK-6500 PK7 Package |
| plm | DisorderTracker2 Music Modules |
| plm | Panasonic SD Voice Editing File |
| pls | DisorderTracker2 Sample Data |
| plst | SmartMusic Playlist |
| pna | PhatNoise Audio |
| pno | Microsoft Windows 8 Piano Song |
| ppc | Adobe Presenter Audio |
| ppcx | Adobe Presenter Audio |
| ppf | Turtle Beach Pinnacle Program |
| prg | WAVmaker Program |
| prlglib | Korg Prologue Sound Bank Data |
| prlgunit | Korg Prologue Unit |
| provbank | Prophet V Audio Bank |
| pru2 | Prorunner 2.0 Music |
| ps16 | Protracker Studio Module 16 |
| psb | Turtle Beach Pinnacle Sound Bank |
| psf | PlayStation 2 Sound Format Audio |
| psf2 | PlayStation 2 Sound Format Audio |
| psflib | Portable Sound Format Library |
| psflib2 | Portable Sound Format Library |
| psg | ZX Spectrum 128 Audio |
| psion | Psion A-law Sound Data |
| psm | Protracker Studio Module |
| psy | Psycle Song |
| pt3 | Pro Tracker 3 Compilation |
| ptc | MultitrackStudio Patch Data |
| ptm | Polytracker Module |
| ptnoise | PxTone PtNoise Audio File |
| ptt | Viber Audio Push-to-talk Data |
| pttune | PxTone Audio File |
| ptvoice | PxTone PtVoice Audio File |
| puma | Pumatracker Music |
| pvc | Panasonic VM1 Voice Data |
| pya | Microsoft PlayReady Audio |