| .PIN | Sapper Oy | GIS檔案 | MNS Projection Information File | Master Navigation Software | Sapper Oy |
| .PIX | PCI Geomatics | GIS檔案 | PCI Geomatics Database File | ESRI ArcGIS for Desktop | ESRI (Environmental Systems Research Institute) |
| .PMF | ESRI | GIS檔案 | ESRI Published Map File | ESRI ArcGIS for Desktop | ESRI (Environmental Systems Research Institute) |
| .PNA | PhatNoise (Harman International) | GIS檔案 | PhatNoise Audio File | PhatNoise Music Manager | PhatNoise (Harman International) |
| .PP2 | Pingman Tools | GIS檔案 | PingPlotter Data File | PingPlotter | Pingman Tools |
| .PPC | Garmin | GIS檔案 | XMap Flight Plan Statistic File | XMap | Garmin |
| .PPS | Microsoft Corporation | GIS檔案 | PowerPoint Slide Show | Apache OpenOffice | Apache Software Foundation |
| .PR5 | GEOTOP | GIS檔案 | MapSys Map File | MapSys | GEOTOP |
| .PRC | Adobe Systems Incorporated | GIS檔案 | Product Representation Compact File | Adobe Acrobat DC | Adobe Systems Incorporated |
| .PRM | Unknown Developer | GIS檔案 | Parameter File | GSAS | National Institute of Standards and Technology (NIST) |
| .PTM | Microsoft Corporation | GIS檔案 | MapPoint Map File | Microsoft MapPoint | Microsoft Corporation |
| .PTT | Avid Technology | GIS檔案 | Pro Tools Session Template | Avid Pro Tools | Avid Technology |
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