| .P11 | HERE | Szokatlan fájlok | HERE Maps For Android Map Data Package | Unknown Software | Unknown Developer |
| .P38 | Apple | Adat fájlok | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .P40 | Unknown Developer | Szokatlan fájlok | Uncommon File Extension | Unknown Software | Unknown Developer |
| .P41 | Tandy | Raszterkép fájlok | TRS-80 Image | Unknown Software | Unknown Developer |
| .P56 | Unknown Developer | Szokatlan fájlok | Unknown File Type | Unknown Software | Unknown Developer |
| .PAN | ProVUE Development | Adatbázis fájlok | Panorama Database File | Unknown Software | Unknown Developer |
| .PARA | Unknown Developer | Szokatlan fájlok | Unknown File Type | Unknown Software | Unknown Developer |
| .PARAMFILE | Unknown Developer | Szokatlan fájlok | Unknown File Type | Unknown Software | Unknown Developer |
| .PARSER | Apple | Adat fájlok | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .PASCAL | Apple | Adat fájlok | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .PATCHER | Apple | Adat fájlok | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .PATH | Apple | Adat fájlok | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .PAUSE | Apple | Adat fájlok | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .PAYROLL | Apple | Adat fájlok | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .PBMP | Unknown Developer | Raszterkép fájlok | Renamed UNIX Portable Bitmap Graphic (PBM) File | Unknown Software | Unknown Developer |
| .PC9 | Unknown Developer | Szokatlan fájlok | Uncommon File Extension | Unknown Software | Unknown Developer |
| .PC?= | Unknown Developer | Szokatlan fájlok | Unknown File Type | Unknown Software | Unknown Developer |
| .PCO | Unknown Developer | Szöveg fájlok | PC-Outline Outline | Unknown Software | Unknown Developer |
| .PD0 | SonTek | Rendszer fájlok | SonTek Firmware File | Unknown Software | Unknown Developer |
| .PDFCEIBAL | Unknown Developer | Szokatlan fájlok | Unknown File Type | Unknown Software | Unknown Developer |
| .PDY | Unknown Developer | Szokatlan fájlok | Uncommon File Extension | Unknown Software | Unknown Developer |
| .PD_ | Unknown Developer | Szokatlan fájlok | Visc15 Images Setup File | Unknown Software | Unknown Developer |
| .PENIS | Unknown Developer | Szokatlan fájlok | Unknown File Type | Unknown Software | Unknown Developer |
| .PEPSI | Apple | Adat fájlok | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .PG2 | Apple | Adat fájlok | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .PG3 | Apple | Adat fájlok | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .PGL | Hewlett-Packard | Grafikus fájlok | HP Plotter Language File Format | Unknown Software | Unknown Developer |
| .PG_ | Unknown Developer | Szokatlan fájlok | Uncommon File Extension | Unknown Software | Unknown Developer |
| .PHPUSERNAM | Unknown Developer | Szokatlan fájlok | Unknown File Type | Unknown Software | Unknown Developer |
| .PHR | Adobe Systems Incorporated | Adat fájlok | RoboHelp Phrase List | Unknown Software | Unknown Developer |
| .PH_ | Unknown Developer | Adat fájlok | C Poet Compressed Disk1 File | Unknown Software | Unknown Developer |
| .PII | Apple | Adat fájlok | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .PJRPD | Unknown Developer | Szokatlan fájlok | Unknown File Type | Unknown Software | Unknown Developer |
| .PKPAK | Unknown Developer | Szokatlan fájlok | Archive File | Unknown Software | Unknown Developer |
| .PLACEHOLDEREXTENSION | Unknown Developer | Szokatlan fájlok | Uncommon File Extension | Unknown Software | Unknown Developer |
| .PLAYSOUND | Apple | Adat fájlok | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .PLOTTER | Apple | Adat fájlok | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .PLUS | Apple | Adat fájlok | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .PND | DATAIR | Adat fájlok | DATAIR Pension System Pending Data | Unknown Software | Unknown Developer |
| .POM | Apache Software Foundation | Szokatlan fájlok | Maven Build File | Unknown Software | Unknown Developer |
| .PONGLIFE | Apple | Adat fájlok | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .POO | Open Source | Szokatlan fájlok | Commodore C64 Machine Code | Unknown Software | Unknown Developer |
| .POSTSCRIPT | Apple | Adat fájlok | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .PPN | Lexmark International, Inc. | Adat fájlok | Lexmark Printer Firmware | Unknown Software | Unknown Developer |
| .PPT | Microsoft Corporation | Adat fájlok | PowerPoint Presentation | Unknown Software | Unknown Developer |
| .PPT- | Unknown Developer | Szokatlan fájlok | Unknown File Type | Unknown Software | Unknown Developer |
| .PPVA | Unknown Developer | Szokatlan fájlok | Unknown File Type | Unknown Software | Unknown Developer |
| .PQN | Unknown Developer | Szokatlan fájlok | Unknown File Type | Unknown Software | Unknown Developer |
| .PRG | Open Source | Futtatható fájlok | Program File | Unknown Software | Unknown Developer |
| .PRINT | Apple | Adat fájlok | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .PRISM | Apple | Adat fájlok | Golden Orchard Apple II CD Rom File | Unknown Software | Unknown Developer |
| .PRN | Various Developers | Oldal elrendezés fájlok | HP PCL Printer Output | Unknown Software | Unknown Developer |
| .PROG | Unknown Developer | Szokatlan fájlok | Unknown File Type | Unknown Software | Unknown Developer |
| .PRUI | Unknown Developer | Szokatlan fájlok | Unknown File Type | Unknown Software | Unknown Developer |
| .PSI | SAPIEN Technologies | Szokatlan fájlok | PrimalScript Online Help Shortcut | Unknown Software | Unknown Developer |
| .PT3 | Harvard Graphics | Szokatlan fájlok | Harvard Device Driver File | Unknown Software | Unknown Developer |
| .PUT | Micro Fox Software | Tömörített fájlok | PUT Compressed Data | Unknown Software | Unknown Developer |
| .PUZZLE | Unknown Developer | Szokatlan fájlok | X11 Puzzle File | Unknown Software | Unknown Developer |
| .PVD | Varden Development | Adat fájlok | Polygen3D Vector Descriptor | Unknown Software | Unknown Developer |
| .PVI | Canon Inc. | Adat fájlok | Canon Picture Browser Cache Index | Unknown Software | Unknown Developer |
| .PVP | Unknown Developer | Szokatlan fájlok | Uncommon File Extension | Unknown Software | Unknown Developer |
| .PY1 | Unknown Developer | Szokatlan fájlok | Uncommon File Extension | Unknown Software | Unknown Developer |
| .PYB | Unknown Developer | Szokatlan fájlok | Uncommon File Extension | Unknown Software | Unknown Developer |
| .PZI | Unknown Developer | Grafikus fájlok | Pizazz Plus Graphics File | Unknown Software | Unknown Developer |
| .P_G | Unknown Developer | Szokatlan fájlok | Uncommon File Extension | Unknown Software | Unknown Developer |
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