| patterns | Corel Painter Pattern Library |
| paux | plasTeX Data |
| pav | MediaMatrix Peavey Architectural View Data |
| paw | Pawaa File |
| pay | z-Tree Payment File |
| payload | Windows Mobile Payload Data |
| paz | Project A.R.S.E Brain Data |
| pb1 | UltraEdit Popup Data |
| pb5 | COM Profibus v5 Data |
| pbb | Personal Book Builder Data |
| pbd | PBD-14 Input Data |
| pbf | Picasa Button File |
| pbf | PowerBackup Data |
| pbin | polarization NAVIGATOR Binary Data |
| pbj | PowerBackup Job Data |
| pbn | Portable Bridge Notation Database |
| pbo | Samsung A900 Phone Book Object |
| pbp | COM Profibus ASCII Exported Data |
| pbp | Sony PSP Firmware Update Image |
| pbq | PunkBuster Query Script |
| pbr | Microsoft Publisher Backup Data |
| pbz | Picasa Button Zipfile |
| pc | Sierra Print Artist Postcard |
| pc5 | RSLogix 5 Internal Data |
| pca | MicroSim PCBoard Layout Data |
| pca | PCAnywhere Registry Backup |
| pcache | Unity Point and Particle Cache |
| pcap | Libpcap Captured Packets |
| pcapng | PCAP Next Generation Dump Data |
| pcast | iTunes Podcast File |
| pcb | CIRCAD PCB Design |
| pcb | SmartCAM Custom Control Panel File |
| pcb3dlib | Altium Designer PCB 3D Model |
| pcbdoc | Altium PCB Document |
| pcblib | Protel PCB 3.0 Binary Library |
