| .prg |
PC-DMIS Part Program File |
| .prx |
PSP Plugin File |
| .pptm |
PowerPoint Open XML Macro-Enabled Presentation |
| .ppsx |
PowerPoint Open XML Slide Show |
| .pln |
ArchiCAD Project File |
| .ps1 |
Windows PowerShell Cmdlet File |
| .ps1xml |
Windows PowerShell Display Configuration File |
| .psm1 |
Windows PowerShell Script Module File |
| .pck |
System Center Configuration Manager Package File |
| .partial |
Internet Explorer Partially Downloaded File |
| .pab |
Personal Address Book |
| .pwl |
Windows Password List |
| .pot |
PowerPoint Template |
| .ppa |
PowerPoint Add-in |
| .pak |
Archive file format commonly used to store various types of data |
| .pol |
Windows Policy File |
| .pf |
Private File |
| .pjx |
FoxPro Project |
| .pdm |
PowerDesigner Database File |
| .pwi |
Pocket Word Document |
| .ptm |
MapPoint Map File |
| .ppsm |
PowerPoint Open XML Macro-Enabled Slide Show |
| .potx |
PowerPoint Open XML Presentation Template |
| .potm |
PowerPoint Open XML Macro-Enabled Presentation Template |