| pptmhtml | Multipurpose Internet Mail Extension HTML |
| pptt | OnlyOffice Internal PPTX Document |
| pptx | Microsoft PowerPoint 2007 Presentation |
| ppx | Serif PagePlus Template |
| pr3 | Adobe Persuasion v3 Presentation |
| pr4 | Harvard Graphics Presentation |
| prdx | SoftMaker Presentations Document |
| prjdoc | Altium Designer PCB Document |
| prn | Printer Text File |
| pro | Chord Pro Chord |
| pro4 | ProPresenter 4 Document |
| pro4dvd | ProPresenter 4 DVD Clip |
| pro4pl | ProPresenter 4 Playlist File |
| pro4plx | ProPresenter 4 Playlist Bundle |
| pro4x | ProPresenter 4 Bundle |
| pro5 | ProPresenter 5 Document |
| pro5dvd | ProPresenter 5 DVD Clip |
| pro5pl | ProPresenter 5 Playlist File |
| pro5plx | ProPresenter 5 Bundled with Playlist File |
| pro5x | ProPresenter 5 Bundle File |
| proqc | ProPresenter 4 Quartz Composition |
| prs | Harvard Graphics Presentation |
| prt | Corel Presentations Template |
| prt | CADKEY Part Document |
| prt | Solid Edge Parts Document |
| prtl | Adobe Premiere Title Template |
| ps5 | ProSteel 5 Document |
| psm | Solid Edge Sheet Metal Document |
| psp | Scitor Project Scheduler Planning File |
| psq | Adobe Premiere 6 Storyboard |
| pss | Pod SnapShot |
| pss | Pocket SlideShow Presentation |
| pssd | PhotoSuite Slide Show |
| psu | PSU Designer Document |
| psw | Pocket Word Document |
