| 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 |
| pro5template | ProPresenter 5 Template |
| pro5x | ProPresenter 5 Bundle File |
| pro6 | ProPresenter 6 Document |
| pro6x | ProPresenter 6 Bundle |
| proqc | ProPresenter 4 Quartz Composition |
| prs | Harvard Graphics Presentation |
| Lotus Freelance Graphics Presentation Data |
| SoftMaker Presentations Slide Show |
| prs1 | Adobe Persuasion v2 Presentation |
| prs2 | Adobe Persuasion v2 Presentation |
| prsx | SoftMaker Presentations Slide Show |
| prt | CADKEY Part Document |
| Corel Presentations Template |
| Solid Edge Parts Document |
| prt2 | Adobe Persuasion Template |
| prtl | Adobe Premiere Title Template |
| prv | SoftMaker Presentations Document Template |
| prvx | SoftMaker Presentations Document Template |
| ps5 | ProSteel 5 Document |
| psh | ProShow Producer Slideshow |
| psip | Microsoft Works 1.1 for Mac Document |
| psm | PrintShop Mail Document |
| SiSense Prism Document |
| Solid Edge Sheet Metal Document |
| psmd | PrintShop Mail Document |
| psmt | PrintShop Mail Template |
| psp | Scitor Project Scheduler Planning File |
| psq | Adobe Premiere 6 Storyboard |
| pss | Pocket SlideShow Presentation |
| Pod SnapShot |
| pssd | PhotoSuite Slide Show |
| pst | ProShow Producer Template |
| psu | PSU Designer Document |
| psw | Pocket Word Document |
| psz | Compressed PostScript |
| pt | PTab Spreadsheet Document |
| pt3 | Adobe Pagemaker 3.0 Template |
| pt4 | Adobe Pagemaker 4.0 Template |
| pt5 | Adobe PageMaker 5.0 Template |
| pt6 | Adobe PageMaker 6.0 Template |
| ptb | Power Tab Editor Tabulature |
| Pro/ENGINEER Pattern Table |
| ptf | Scrapbook Flair Template |
| ptk | PTOCA Format Data |
| Puntotek Embroidery Design Document |
| ptn | DigiStitch Design |
| ptnx | EasyBeadPatterns Pattern |
| ptt | Context4 Print Data |
| ptw | Autodesk AutoCAD Publish to Web File |
| ptx | Adobe Pagemaker Template |
| E-Transcript Document |
| ptz | E-Transcript Bundle |
| pu | PlantUML Document |
| pub | Corel Ventura Publisher Publication |
| Microsoft Publisher Document |
| Print Perfect Gold Template |
| pubhtml | Microsoft Publisher HTML Document |
| publication | Twixl Publisher Publication |
| pubmhtml | Microsoft Publisher Archived HTML |
| pui | Publish-It Document |
| pve | GoBe Productive Document |
| pvf | PCStitch Pro Design Document |
| pvg | Pazzles InVue Document |
| pvgc | Pazzles InVue Compressed Document |
| pvm | HP Photo Album |
| pvn | Design and Print Document |
| pvu | RealVue 3D Packager Document |
| pw | Pathetic Writer Document |
| pwd | DynaCAD v4 Parts Document |
| Pocket Word Document |
| Solid Edge Weldment Document |
| pwdp | Password Pad Document |
