| .odl |
Object Description Language File |
| .oat |
Android Optimized Application File |
| .os |
ObjectScript Source File |
| .orderedtest |
Visual Studio Ordered Test File |
| .oxygene |
Oxygene Project File |
| .ob2 |
Oberon-2 Source Code File |
| .ow |
Free Pascal 1.0.x Object File |
| .pl |
Perl Script |
| .py |
Python Script |
| .prg |
PC-DMIS Part Program File |
| .pas |
Delphi Unit Source File |
| .pch |
Nastran Punch Output File |
| .pod |
Terminal Reality Game Data File |
| .pro |
Adobe Proto Design File |
| .psm1 |
Windows PowerShell Script Module File |
| .pbxuser |
Xcode Project User Data File |
| .pbxproj |
Xcode Project Data File |
| .pbj |
Pixel Bender Bytecode File |
| .proto |
Protocol Buffer File |
| .playground |
Xcode Playground File |
| .pot |
PowerPoint Template |
| .p |
Python Pickle File |
| .pyd |
Python Dynamic Module |
| .pjx |
FoxPro Project |