| p09 | Parity Archive V2 |
| p10 | Parity Archive V2 |
| p11 | Parity Archive V2 |
| p12 | Parity Archive V2 |
| pack | Pack200 Archive |
| package | Linux Autopackage Package |
| pact | Compact Pro Archive |
| pae | PowerArchiver Encrypted Archive |
| paf | Portable Application Installer |
| pafx | YouMinds Composer Portable Archive |
| pafz | YouMinds Composer Portable Archive |
| paq | PAQ Compressed Archive |
| paq6 | PAQ6 Data Archive |
| paq7 | PAQ7 Data Archive |
| paq8 | PAQ8 Data Archive |
| paq8f | PAQ8F Data Archive |
| paq8jc | PAQ8JC Compressed Archive |
| paq8jd | PAQ8JD Compressed Archive |
| paq8l | PAQ8L Compressed Archive |
| paq8o | PAQ8O Compressed Archive |
| paq8o8 | PAQ8O8 Compressed Archive |
| paq8p | PAQ8P Compressed Archive |
| par | Parity Archive V2 |
| par | SAP Portal Archive |
| par2 | Parity Archive V2 |
| pax | PAX Archive |
| pb1 | Backup Mill Backup Set |
| pba | PowerBackup Archive |
| pbf | Sprite Backup Archive |
| pck | Microsoft SMS Package |
| pcomp | Polycomp Compressed Data |
| pcv | MozBackup Profile Backup |
| pdv | Privacy Drive Volume |
| pe3 | PhotoImpact 3 Image Archive |
| pe4 | PhotoImpact 3 Image Archive |