| pbr | Novell BorderManager Support Pack |
| pck | Godot Engine Game Package |
| pck | Microsoft SMS Package |
| pcomp | Polycomp Compressed Data |
| pcpx | NEC WebPro Configuration Backup |
| pcv | MozBackup Profile Backup |
| pdv | Privacy Drive Volume |
| pe3 | PhotoImpact 3 Image Archive |
| pe4 | PhotoImpact 3 Image Archive |
| pea | P-Encryption Suite Archive |
| pea | PeaZip Archive |
| pet | Puppy Linux Install Package |
| pf | StuffIt Private File |
| pgz | StreamLync Download Archive |
| pim | PIMPLE Compressed Archive |
| pima | Adobe Application Manager Package |
| pimx | Adobe Creative Cloud Extension |
| pit | PackIt Compressed Archive |
| piz | Zipped |
| pk3 | Quake 3 Engine Data |
| pka | PKArc Compressed Archive |
| pkd | Amiga PackDev Disk Archive |
| pkg | Automise ActionDefs Package |
| pkg | CoCreate OneSpace Packaged Data |
| pkg | InstallShield Compiled Setup Package |
| pkg | Mac OS X Installer Package |
| pkg | Microsoft SMS Distribution Manager Package |
| pkg | Sony Playstation 3 Package |
| pkg | Symbian OS Package |
| pkv | Steam Package Data |
