| pfs | First Publisher ART Data |
| pfsb | ParFlow Scattered Binary Data |
| pfsol | ParFlow Solid Data |
| pfw | Symantec LiveAdvisor Data |
| pg | eSignal Page Data |
| pg | STK Propagator File |
| pg2 | ProGen 2 Protocol Data |
| pg3 | Personal Guitarist Song |
| pg5 | FlexPDE Plots Data |
| pga | PowerGREP Action Definition |
| pgal | Photo 3D Album Gallery Data |
| pgb | Harlequin RIP Data |
| pgbk | SoftTouch POS Database Backup |
| pgc | PGN Game Coding |
| pgdata | Penguin George URL Melter Data |
| pgdb | PathVisio Gene Database |
| pgen | PLINK 2.0 Genomic Data |
| pgex | PathVisio Expression Dataset |
| pgf | EVS Pre Geology File |
| pgf | PATCHMASTER Pulse Generator File |
| pgf | PowerGREP File Selection Data |
| pgi | GAUSS Engine PGRAPH Library |
| pgl | PowerGREP Library |
| pgm | Chromeleon Program |
| pgmf | Tacx VR Trainer Program File |
| pgn | Portable Game Notation Data |
| pgo | Papagayo Data |
| pgo | QlikView Server Persistent Group Object |
| pgp | Autodesk AutoCAD Program Parameters Data |
| pgp | BricsCAD Program Parameters Data |
| pgp | PGP Security Signature/Key |
| pgq | PageQ Browser Data |
| pgr | PowerGREP Saved Result File |
| pgr | Pretty Good Privacy Groups Data |
| pgs | PGSuper Data |
| pgsa | PowerGREP Sequence Action Data |
| pgsr | PowerGREP Sequence Results Data |
| pgt | Pokemon Gift File |
| pgt | SigmaWin+ Program Table Data |
| pgu | PowerGREP Undo History Data |
| pgx | Hopedot VOS Data |
| ph | PHYLIP Format |
| ph | Windows Help Phrase-table Data |
| pha | Pro/ENGINEER Helper App Data |
| pha | Process Hazard Analysis File |
| phb | ClustalW2 Tree Data |
| phb | Motorola Phone Book |
| phb | NewLeaf PhraseBook |
| phb | PhotoBase Album Data |
| phc | Pegasus Mail Header Cache Data |
| phd | Phred Data |
| phd | ProShow Producer Database |
| phd | Punch! Home Design CAD Plan |
| phf | ALEID2000 Curves Library |
| phi | SPOCK PhiMap Data |
| phl | Icon Phile Scheme |
| phm | PhotoPhilia Thumbnail Cache |
| phm | Pro Home Manager Data |
| pho | MBROLA Phonetic Data |
| phoa | PhoA Album |
| phonepower | PhonePower for Windows Account Data |
| photolibrary | Apple iPhoto Photo Library |
| photoslibrary | Apple Photos Library |
| phr | Adobe RoboHelp Phrase List |
| phr | iGO Phoneme Data |
| phred | Phred Data |
| phs | SVAL Phases Data |
| pht | ParaView Phasta Metafile |
| phw | PhotoWebber Session Data |
| phx | Mantid Workspace Geometry Information |
| phy | Autodesk 3D Studio Max Physique Data |
| phy | PhyMod Physical Modeling Data |
| phy | Spicemod ASIC Data |
| phylip | PHYLIP Discrete Data |
| phyphox | phyphox Experiment |
| physfs | PhysicsFS Data |
| pi | iPi Calculation Data |
| pib | Platform Independent Binary |
| picd | ProfiCAD Integrated Circuit Document |
| picon | Dreambox Picon File |
| pidb | MonoDevelop Parser Information Database |
| pifast | PiFast Data |
| pigm | Indigo Packed Material Data |
| pigs | Indigo Renderer Packaged Scene |
| pik | Protel 99 Pick and Place Data |
| pike | Pike Source Code |
| pil | ETCBC PIL Data |
| pil | ICUpilot Patient Data |
| pile | CHUM Test Results Data |
| pin | BLAST Protein Database |
| pin | Comptons 3D World Atlas Data |
| pin | MNS Projection Information |
| pins | Protege Instances Data |
| pipc | PIPE-FLO Compressible Database |
| piq | Piped Technology Information Query Data |
| pirs | Xbox 360 Dashboard Data |
| piv | Pivotal Sales Suite Activity Data |
| pivotlink | Microsoft Pivot Link Data |
| piw | PI ProcessBook Data |
| pix | SmartWare Physical Index |
| pixadex | CandyBar Pixadex Icon |
| pj | MKS Source Integrity Data |
| pj | Project64 Saved State File |
| pjb | IBM InfoSphere Information Server Manager Data |
| pjd | Portfolio Exported Categories Data |
| pjf | iAddress Postal Job File |
| pjf | Photojunction File |
| pjl | HP Printer Job Language Data |
| pjl | ProCite Term and Journal Title List Data |
| pjn | Spectrum Projection Metadata |
| pjnz | Spectrum Projection Data |
| pjpeg | Microsoft Rights Management Protected JPEG Data |
| pjt | Photojunction Template |
| pjtf | Portable Job Ticket Format Data |
| pjv | Velocity User Selections Data |
| pjxl | HP PaintJet XL PCL Document |
| pk | Adobe Audition v3 Peak File |
| pk8 | PKCS8 Data |
| pka | Cisco Packet Tracer Activity File |
| pkb | Blackberry Password Keeper Encrypted Backup |
| pkc | Jython JAR Cache |
| pkd | Eurotherm Encrypted Hydra History Data |
| pkd | Top Secret Crypto Gold Packed Data |
| pkf | Adobe Audition Peak File |
| pkf | SecretAgent Key Data |
| pkg | DataFlex Compiled Package |
| pkg | MicroSim PCBoard External Package Definition |
| pkg | P-CAD Package |
| pkgmeta | Bukkit Package Metadata |
| pkgx | Microsoft UE-V PKGX Data |
| pki | LibVirt PKI Data |
| pkj | PokerJuice Data |
| pkl | Microsoft Exchange Migration Wizard Packing List |
| pkl | Migration Wizard Packing List File |
| pklg | Wireshark Packetlogger Data |
| pkn | Microsoft SMS Package Creation Notification |
| pkp | Privacy Killer Plug-in Manager Data |
| pkr | PGP Public Keyring File |
| pks | Insight II NMR Peak Intensity Integral Data |
| pks | STOE Powder Diffraction Peak Data |
| pksz | Cisco Packet Tracer Tutored Activity |
| pkt | Cisco Packet Tracer Network Simulation Model |
| pkt | EtherPeek Collected Packets Data |
| pku | FidoNet Batched Newsgroup Data |
| pkw | CabnetWare Package |
| pky | PockeTTY Security Certificate |
| pl | BRL-CAD 2D Plot Data |
| pl | Fractal Zplot Palette Data |
| pl | Harvard Graphics Palette Data |
| pl | TeX Property List |
| pl1 | Adventure Maker Plugin |
| pl3 | Harvard Graphics ChartXL Palette Data |
| pl4 | Micrografx Designer 4.0 Palette |
| pl5 | Pathloss Link Design Data |
| pl9 | PCAnywhere Session Log |
| pla | Esko FastImpose Plate Data |
| plan | Chief Architect Plan Data |
| plato | PLATO Web Learning Network Temporary File |
| plb | Arena Simulation Software Picture Library |
| plb | DESQview PLB Data |
| plb | Insight II Pseudoatom Library |
| plb | MicroSim PCBoard Package Library |
| plb | Microsoft Robotics Developer Studio Playback Data |
| plb | MSC.Fatigue Improved Performance Patch |
| plb | P-CAD Library |
| plb | PhotoLine Browser Index Data |
| plc | Lotus 1-2-3 PLC Add-in |
| plc | P-CAD Database |
| ple | Messenger Plus! Live Encrypted Log |
| plf | PatchLink Developers Kit Exported Patch |
| plf | SalesLogix Pick List Data |
| plg | BPM Studio Playlist Group |
| plg | ButtonGadget Data |
| plg | Microsoft Developer Studio Build Log |
| plg | REND386 Data |
| plgx | KeePass v2 Plugin |
| plib | SAM Old Dirichlet Mixture Prior Library |
| plist | Mac OS X Property List Data |
| plj | Plus 2D Job Data |
| plk | COREX Part-of-speech Tag Data |
| plk | Password Safe Lock File |
| plma | Protomata-Learner PLMA Data |
| plmn | GSM Public Land Mobile Network Data |
| plmx | PDXpert PLM XML Data |
| plmxml | Siemens PLM XML Data |
| pln | Adobe InDesign Plug-in |
| pln | Corel WordPerfect Office Spreadsheet Data |
| pln | CTP Pro Scene Data |
| pln | Primavera Risk Analysis Plan Data |
| pln | Spaceman Planogram Data |
| plo | Radio Toolbox Playlist |
| plot | Matplotlib Plot |
| plp | Black Duck Protex Project License Profile |
| plp | Messenger Plus! Live Sound Package |
| plq | TAK 2000 Heat Rate Plot |
| plr | Mail.dat Package Label File |
| pls | MYOB Plus Accounting Data |
| pls | PTC Creo Program Design Data |
| pls | Spike2 Output Sequencer Views Data |
| pls | WinPAS Plus32 Database |
| plsc | Messenger Plus! Live Script |
| plsk | Messenger Plus! Live Skin Pack |
| plt | dnaLIMS Sample Sheet Data |
| plt | EPOC Software Platform Data |
| plt | MODTRAN Spectral Output File |
| plt | Nintendo DS Palette Data |
| plt | PTC Creo Plot Data |
| plt | Tecplot 360 Binary Plot Data |
| plt0 | Nintendo Wii Palette Data |
| pltn | Appearance Manager Platinum Theme Data |
| plu | AquaCrop Rainfall Data |
| plu | Portable License Utility Data |
| plu | SensoSCAN 5 Saved Measurements Data |
| plux | SensoSCAN 6 Saved Measurements Data |
| plv | XPowder RAW Data |
| plw | PicoLog Data |
| ply | Finale Playback Data |
| ply | Harvard Graphics Presentation Screen |
| ply | Polygon Model |
| ply | Scanalyze Triangle-mesh Data |
| pm | Lotus 1-2-3 Formatted Text Data |
| pm | Pegasus Mail Frequently Used Data |
| pm! | Pegasus Mail Address Book |
| pm# | Pegasus Mail Status Data |
| pm$ | Pegasus Mail Temporary Data |
| pm1 | Pegasus Mail Folder Secondary Index |
| pm2 | Pegasus Mail UID Information |
| pm3 | Anycubic Photon M3 Printer Sliced Data |
| pm3 | Pegasus Mail 3 Data |
| pm3m | Anycubic Photon M3 Max Printer Sliced Data |
| pm4 | Pegasus Mail General Filtering Rules Data |
| pm5 | Pegasus Mail New Message Template |
| pm5 | SmartCAM Process Model File |
| pm6 | Pegasus Mail Reply Template |
| pm7 | Pegasus Mail Folder State |
| pma | Payroll Mate Data |
| pma | Windows NT Performance Monitor Alert File |
| pmap | ScanMap Modbus Map |
| pmb | Navicat for MariaDB Backup Data |
| pmb | Payroll Mate Backup |
| pmb | Pegasus Mail Address Book Data |
| pmb | Plazmic Media Engine Bundled Data |
| pmbak | PlanMaker Backup Data |
| pmc | Pegasus Mail Filter Rules Data |
| pmc | Windows NT Performance Monitor Chart |
| pmcal | ProModel Calendar Data |
| pmcl | Pinnacle Studio Channel Data |
| pmd | MikuMikuDance PolyMo Model Data |
| pmd | Payroll Mate Database File |
| pmd | Pegasus Mail User Dictionary |