| pkx | IBM Rational XDE Package |
| pkz | Cisco Packet Tracer Archive |
| plat | Platinum Web Package |
| pma | MSX PMA Archive |
| pma | Pegasus Mail Archive |
| pmf | PartitionGuru Backup Image |
| pmom | Mindomo Desktop Packed Map |
| pmz4 | Power Music Backup Archive |
| pnh | Adobe Project ROME Plug-in Archive |
| pp | Amiga PowerPacker Compressed Archive |
| ppkg | Windows ICD Provisioning Package |
| ppv | Pogle Platinum Version Archive |
| pro5templatebundle | ProPresenter 5 Template Bundle |
| prpkg | Adobe Presenter Package |
| prpkg | Preactor Package |
| psa | Plesk Panel Backup Data |
| psa | Pretty Simple Archive archive |
| psarc | Sony PlayStation 3 Game Archive |
| psb | Navicat Backup File |
| psc | Navicat Compressed Backup File |
| pup | Puppy Linux DotPup Package |
| pupg | Efficia DFM100 Software Upgrade Package |
| put | Microfox PUT Compressed Archive |
| puz | Microsoft Publisher Packed Document |
| pv | PV Elite Archive |
| pwv | SSE Password Vault Archive |
| pwzip | Polyworks Compressed Archive |
| pzip | WinZip Mac Archive |
| pzv | PTC Creo View MCAD Package |
| qar | Altera Quartus II Project Archive |
