| pbn | Portable Bridge Notation Database |
| pbo | Samsung A900 Phone Book Object |
| pbp | Sony PSP Firmware Update Image |
| pbq | PunkBuster Query Script |
| pbz | Picasa Button Zipfile |
| pc5 | RSLogix 5 Internal Data |
| pcap | Libpcap Captured Packets |
| pcapng | PCAP Next Generation Dump Data |
| pcast | iTunes Podcast File |
| pcb | SmartCAM Custom Control Panel File |
| pcb3dlib | Altium Designer PCB 3D Model |
| pcbdoc | Altium PCB Document |
| pcblib | Protel PCB 3.0 Binary Library |
| pcc | PCCharge Log File |
| pcd | Microsoft Visual Test File |
| pcdat | VASP Physics Corellation Data |
| pce | TurboGrafx-16/PC Engine Data |
| pce | Gerber PCE Data |
| pcf | Calyx Point Point Data |
| pcf | Cisco VPN Client Profile Configuration |
| pcfl | SoftWindows Binary Data |
| pcfs | Calyx Point Compressed Point Data |
| pcg | Autodesk Revit Point Cloud File |
| pci | Windows PCI Miniport Data |
| pcif | PayCycle Import Data |
| pcl | OptionVue Portfolio Manager Parcel Data |
| pcmi | ABB PCM600 Pre-configured IED Data |
| pcmt | ABB PCM600 Template IED Data |
| pcn | Corel Paint Shop Pro Contour Preset |
| pcrd | Bio-Rad CFX Manager Software Data |
