Стандартные занчения расширений файлов
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Num Sym
.??_ Files ending in "_" are often compressed install files of the same
name (e.g., .EX_ expands to .EXE, .DL_ expands to .DLL, etc.)
.P PASCAL Program File
ReaGeniX Code Generator Application Parameter File
Applause Picture
Progress 4GL Program
Cliq Accessories Datebook Permissions [Linux Suite PDF Description]
.P01 IsoBuster File
.P01, .P02, ... particularly in binary newsgroups (See .PAR below)
.P10 Tektronix Plot 10 Drawing
Certificate Request
.P12 Personal Information Exchange File
.P16 ProTracker Studio Music
.P22 Patch22 Patch File
.P3 Primavera Project Planner
.P34 P34 Lotto File
.P3D Operation Flashpoint Game Model (within .PBO archive - edit with Oxygen)
.P64 Picasso 64 [XnView]
H.261 Encoded Video File [Player]
.P65 Pagemaker 6.5 File
.P7 Xv Visual Schnauzer Thumbnail Format
.P7B PKCS #7 Certificate
.P7C Digital ID File
.P7M PKCS #7 MIME Message (see Section 3.2 in RFC 2311) [MIME]
.P7R PKCS #7 Certificate
.P7S PKCS #7 Signature
.PA Print Artist
.PA1 PageAhead Worktable
.PA2 STABCAL (stability calculation for aqueous systems) File
.PA3 STABCAL (stability calculation for aqueous systems) File
.PA5 STABCAL (stability calculation for aqueous systems) File
.PAB Microsoft Personal Address Book
.PAC SB Studio II Package
Stad Image [XnView]
Desperados: Wanted D|A Archive [Dragon UnPACKer]
Screen Subtitling Systems Win2020 Screen Subtitle
.PAD Telemate Keypad Definition
Scanner Output [IrfanView]
(To edit try renaming to .JPG -- these are often JPEG files.)
Visual Expert Source Code Documentation
Top Secret Crypto Gold File
MicroSim PCBoard PADS-compatible Netlist File
.PAE PowerArchiver 20002 Encrypted Archive
.PAF PARIS Audio Format
Personal Ancestral File
.PAG Property Page File
.PAINT MacPaint Bitmap Graphic [XnView]
.PAK Compressed Archive File
Dune 2 Archive [Dragon UnPACKer]
Final Fantasy 8 [Dragon UnPACKer]
Half Life Archive [Dragon UnPACKer]
Hand of Fate Archive [Dragon UnPACKer]
Heretic 2 Archive [Dragon UnPACKer]
Hexen 2 Archive [Dragon UnPACKer]
Lands of Lore Archive [Dragon UnPACKer]
Quake 2 Archive [Dragon UnPACKer]
Quake Archive [Dragon UnPACKer]
Trickstyle Archive [Dragon UnPACKer]
.PAL Color Palette
Adobe Pagemaker Library Palette
Tree Professional Palm Creator File
Command & Conquer File [Format]
Compressed File
Pallas Athena Protos Process Model
.PALM Palm Pixmap
.PAN Chromeleon Control Panel
CorelDraw Printer-specific File
The Panorama Factory Project (versions lower than 2.0, higher use .PFP)
Infinite Pictures, Inc. iMove Viewer
SmoothMove Pan Viewer [XnView]
.PAP Tree Professional Palm Creator Image File
Corel Painter Pattern, Selection or Texture File
.PAQ HP System Recovery File (Files are A.PAQ, B.PAQ, etc. Use an unzip
program to open with the password "pandora" [or "Pandora" in a second report].)
.PAR Fractint Parameter File
Parity Volume Sets (.P01,...) (multiple programs - original: Mirror)
Mirror Archive Restoration File
SmartPar (takes over after Mirror)
SolidEdge 3D CAD Model
Digitalk Parts Application
Model Parameter File
Windows 3.x Permanent Output File
SAP Enterprise Portal Component
Scalado ImageZoom Parameter File (Creates zoomable images on the Internet)
.PART eDonkey 2000 Partial Download
.PAS Pascal Source Code
Borland C++ Builder 6 Source
Borland Delphi Source
.PASS Minimouse Quiz Editor Password Protected File
.PAT AutoCAD Hatch Pattern
Patch File (used to update various programs)
Corel Vector Pattern [XnView]
PaintShop Pro Pattern [XnView]
Advanced Gravis Ultrasound
Forte Tech. Patch
DART Pro 98 Pattern
GIMP Pattern [GIMP] [XnView]
Arcinfo Coverage File (GIS-related file)
ArcView Geocoding Pattern Recognition File
.PAU OzWin CompuServe E-mail/Forum Access Paused Message
.PAV Panda Antivirus File (unverified)
.PAV???? Panda Antivirus File (???=numbers; unverified)
.PAX Project A.R.S.E Brain File
.PAY Priority Data Sytems PriorityRate
(Comparative rating programs solutions to insurance agents)
.PAZ Project A.R.S.E Brain File
.PB WinFax Pro Phone Book
PixBase Setup
FAXability Fax
.PB1 First Publisher Document
.PB2 STABCAL (stability calculation for aqueous systems) File
.PBA Powerbasic Source Code
.PBD PowerBuilder Dynamic Library
FaxNOW/Faxit Phone Book
Faxit Phone Book
Adobe Graphic Format
.PBF Turtle Beach Pinnacle Bank File (multilayer sound file)
Grand Prix Legends BMAP (Bitmap) File
PBook E-book Format (renamed ZIP file)
Portable Bitmap Format File
Paragon Disk Image
.PBI Profiler Binary Input
Powerbasic Include File
.PBK Microsoft Phonebook
(various small computers use this format for their phonebooks)
ElectraSoft Fax Phone Book
HP-95LX Phone Book File
.PBL PowerBuilder Library
Powerbasic Library
.PBM UNIX Portable Bit Map Graphic [XnView] [IrfanView]
XLib Planar Bitmap
.PBN Portable Bridge Notation (stores deals for the card game bridge)
.PBO Operation Flashpoint Archive [Dragon UnPACKer]
.PBQ PunkBuster Query Script
Audio File (usually you have to rename to .MP3 to play)
.PBR PowerBuilder Resource
BI/Suite Hypercube Presentation
.PBO Profiler Binary Output
OpFlashpoint Game Mission Folder (wrapped up into one file) [Resource Site]
.PBR PowerBuilder Resource File [Resource Site]
BorderManager 3.5 Support Pack 3 File
Microsoft Publisher Autosave/Autorecovery/Backup File
.PBS PowerArchiver Backup Script
Paint Shop Pro Brush Stroke Preset
.PBT Profiler Binary Table
Micro Dynamics MARS [XnView]
.PBV Paint Shop Pro Bevel Preset
.PBX Microsoft Outlook Express Message Folder
.PC PC-specific Text File
Sierra Print Artist Postcard
Oracle Pro*C Source Code
.PC1 Degas & Degas Elite [XnView]
.PC2 Degas & Degas Elite [XnView]
STABCAL (stability calculation for aqueous systems) File
AutoCAD R14 Plotter Configuration File
PrivateChat! (Encrypted Internet / Lan Instant Messaging / File Transfer)
.PC3 Harvard Custom Palette (Harvard Graphics taken over by Serif)
Degas & Degas Elite [XnView]
STABCAL (stability calculation for aqueous systems) File
AutoCAD R2000 Plotter Configuration File
.PC5 Rockwell Software Logix 5 File
STABCAL (stability calculation for aqueous systems) File
.PC8 ASCII Text IBM-8
.PCA PCAnywhere Registry Backup
Sonic Foundry Perfect Clarity Audio File
MicroSim PCBoard Layout Database File (ASCII)
.PCB Protel Technology Advanced PCB Design
Microsoft PowerPoint Application Data File 
[Buy Office XP at Shop.Microsoft]
Ivex Winboard Design File
Broderbund Print Shop Business Card
.PCC PC Paintbrush Image File
.PCD Photo-CD Image [XnView] [IrfanView]
P-Code Compiled Test Scripts
.PCDS Photo-CD Image
.PCE Eudora Mailbox Name Map
Print Shop Envelope
Borland Package Collection Editor File
.PCF Profiler Command File
HP-95LX Printer Configuration File
Calyx Point (mortgage software)
Paint Shop Pro Colored Foil Preset
.PCH Patch File
Microsoft C PreCompiled Header
.PCI1 DCX-PCI100 Motion Control Command Language File
.PCI3 DCX-PCI300 Motion Control Command Language File
.PCJ IBM Linkaway-Live Multimedia Tool Graphics
.PCK Turbo Pascal Pick File (may be found with many programs that use a pick file)
ARIA PIPP Spectrum
Commandos II File [Extractor]
.PCL HP Printer Control Language [SwiftView] [XnView]
.PCM Sound File
OKI MSM6376 Synth Chip PCM Format
Embroidery Design File [possibly read with Melco Sizer Software]
Bliss for Windows
(A series of computer programs for working with the graphical language Bliss)
.PCN Paint Shop Pro Contour Preset
.PCP Symantec Live Update Pro
AutoCAD R13 and Prior Plotter Configuration File
.PCS PICS Animation
Pfaff Home Embroidery Format (Catalog using Designer's Gallery Studio)
(Pfaff Creative VIP Software)
Ultra Zip Password Cracker (UZPC) File (No longer available.)
.PCT Bitmap Graphic (Apple PICT Format Usually)
Macintosh Quickdraw/PICT Drawing [XnView]
Honeywell GUS Display Builder
(factory process overview--an ActiveX container that runs from a viewer)
NIST IHDR [XnView]
.PCW PC Write Text File
.PCX PC Paintbrush Bitmap Graphic [IrfanView] [SwiftView]
.PD Male MRI [XnView]
.PD? DFSEE Partition Table Backup (PTABLE.PT? where ?=1, 2, 3, etc.)
.PD3 ICDD X-ray Powder Diffraction Patterns and Digitized Diffractogram
Denso BHT-7000 Terminal Executable Program File
3D Studio Max File [OOF Converter Plug-in]
.PDA Bitmap Graphic
.PDB Palmpilot Database/Document File [XnView]
Pegasus DataBase
Tact File
Adobe PhotoDeluxe Image [XnView]
Microsoft Visual Dev C++ Debugging Info
QuickPOS Database File
Brookhaven Protein Databank File (MIME type chemical/x-pdb)
MonkeyCard/MonkeyLogo [XnView]
TealPaint [XnView]
Powerproject Teamplan (was Power Project)
Insight II Brookhaven Protein Databand File
Ribbons Data (Molecular graphics software)
.PDBX Insight II X-PLOR Coordinate File
.PDC PowerDivX NextGen Media Player Chapter File
PReS Print Control
.PDD Adobe PhotoDeluxe Image [XnView]
.PDF Adobe Acrobat File
Netware Printer Definition File
Analyser Protocol Definition File
Ed-Scan 24-bit Graphic File
Microsoft Package Definition File (Inventory-related)
ArcView Preferences Definition File
.PDG PrintShop Deluxe File
.PDI Microsoft Powerpoint File [Buy Office XP at Shop.Microsoft]
PReS Document Creation Subroutines
.PDL Borland C++ Project Description Language
SymbianOS Printer Driver
WITE32 File (Windows Integrated Test Environment)
.PDM Sybase Power Designer File
PowerDivX NextGen Media Player
.PDN Plan de Negocio
.PDP Broderbund Print Shop Deluxe File
Adobe Photoshop PDF Format (used to read PostScript documents as .PDF)
.PDQ Patton & Patton Flowcharting PDQ Lite File
.PDR Port Driver (used by many devices)
SymbianOS Printer Resource File
.PDS Print Shop Graphic
Incredimail
Source Code File
Telsis HiCall Program File
Planetary Data System [XnView]
.PDT ProCite Primary Database
VersaPro Compiled Block
.PDV Paintbrush Printer Driver
.PDW Professional Draw Document
.PDX Paradox Files
ProCite Database Keys
Acrobat Catalog Index
Mayura Draw [XnView]
.PDZ GZipped Brookhaven Protein Databank File (see .PDB)
.PE PatentEase File
.PE4 Photo Explorer Thumbnail [XnView]
.PEB WordPerfect Program Editor Bottom Overflow File
.PEBPRJ PEBundle File (bundle executable and associated .DLL files)
.PED WordPerfect Program Editor Delete Save
.PEM WordPerfect Program Editor Macro
.PEN Paint Shop Pro Enamel Preset
.PEO Homeworld MESH File [Extractor]
.PEP TurboProject Project File
.PEQ WordPerfect Program Editor Print Queue File
.PER WordPerfect Program Editor Resident Area
.PES WordPerfect Program Editor Work Space File
Brother/Babylock/Bernina Home Embroidery Format
(Catalog using Designer's Gallery Studio)
.PET WordPerfect Program Editor Top Overflow File
Custom CD Menu
Magic Petz File
.PEW IAR Embedded Workbench (C/Embedded C++ cross compiler and debugger)
.PF Monitor or Printer Profile File
Aladdin Systems Private Files Encrypted File
Progress Parameter File
Prefetch (also called Scenario) File (located in %windir%\prefetchfolder)
(Prefetch files contain info necessary to start applications faster)
.PF? SmartWare Project Source File (requires login)
.PFA Postscript Type 1 Font (ASCII)
.PFB Postscript Type 1 Font (binary)
.PFC PF Component
New Soft Presto! Page Manager File (product often ships with scanners)
AOL Preferences
(Subfolder of Personal Filing Cabinet (PFC) saved as a
separate file. Viewable only using AOL "File-Open" menu)
First Choice Text File
.PFE Programmers File Editor
.PFF Armored Fist 3 Archive [Dragon UnPACKer]
Delta Force Archive [Dragon UnPACKer]
Delta Force 2 Archive [Dragon UnPACKer]
Delta Force: Land Warrior Archive [Dragon UnPACKer]
Tachyon Archive [Dragon UnPACKer]
.PFG jEEPers File (program your AVR)
.PFK XTree Programmable Function Keys
.PFL SmartStation AppsView File
Paint Shop Pro Fine Leather Preset
.PFM Printer Font Metrics (PostScript)
.PFP The Panorama Factory Project (versions 2.0 and above, lower use .PAN)
.PFR PaintShop Pro Frame [XnView]
WebFont Wizard Portable Font Resource (no longer supported)
.PFS PFS:File Database / PFS:Write Text
BIOCCELERATOR Homologous Sequence Names
.PFT Chiwriter Printer Font
.PFX Personal Information Exchange File
.PG IBM LinkWay Cut/Paste File
Printfox/Pagefox [XnView]
.PGA PowerGREP Action File
.PGC Compressed Portfolio Graphic [XnView]
.PGD Pretty Good Privacy Virtual Disk File
.PGF Portfolio Graphics [XnView]
.PGI PGraph Library Printer Device Driver
.PGL Graphics (Plotter)
.PGM Portable Graymap Graphic [XnView] [IrfanView]
Chromeleon Batch Program
Signature Program
.PGN Portable Game Notation (Used for chess)
.PGP Program Parameter
Pretty Good Privacy
AutoCAD Program Parameter File
.PGR PowerGREP Results File
.PGS Man4DOS Manual Page
PGSuper (Prestressed Girder SUPERstructure design and analysis)
.PGT Sothink Glenda Widget Tools File
.PGX Binary Property Page File
.PH PERL Header
Optimized Geoworks .GOH File
Microsoft Help Compiler Phrase Table
.PH3 PHP Script
.PHB NewLeaf PhraseBook
ClustaW Tree File
TreeView File (Tree drawing software for Apple Macintosh and Windows)
PhoneB Phonebook File
Arcsoft PhotoBase File
.PHC Home Embroidery Format (Catalog using Designer's Gallery Studio)
.PHD PC Help Desk File
.PHL Icon Collection File
Database Configuration File (GLOBAL.PHL for Postgres or mysql)
PHP Source File (ASCII text file)
.PHM Phorm (config or distro file) (Form processor)
.PHN UltraFax/QmodemPro Phone List
Phormation (status or distro file - Config program for Phorm)
.PHO Metz Phone Phone List
Gerber Photoplot File
.PHP PHP Script [Also .PHP3 & .PHP4]
Microsoft Picture It! Publishing Project File
PhotoParade [XnView]
.PHP3 PHP Script
.PHP4 PHP Script
.PHQ Handheld Quake Language File
.PHR NoExcuse Phrase Checker
LocoScript Phrases
.PHS PHScript File (document description script)
.PHT Partial Hypertext File (HTML fragments compiled into a whole)
.PHTM PHP Script (usually with HTML output)
.PHTML PHP Script (usually with HTML output)
.PHW Media Lab PhotoWebber Session File
.PI Blazing Paddles [XnView]
.PI1 Degas & Degas Elite [XnView]
.PI2 Degas & Degas Elite [XnView]
.PI3 Degas & Degas Elite [XnView]
.PI4 Degas & Degas Elite [XnView]
.PI5 Degas & Degas Elite [XnView]
.PI6 Degas & Degas Elite [XnView]
.PIC PC Paint Bitmap Graphic [XnView]
Advanced Art Studio [XnView]
Lotus Picture
Macintosh Quickdraw/PICT Drawing [XnView]
SDSC Image Tool Pixar Picture
Bio-Rad Confocal [XnView]
Pixar Picture [XnView]
Psion Series 3 Bitmap [XnView]
Radiance Scene Description Image [XnView]
Rayshade Graphic [XnView]
Softimage [XnView]
Stad File [XnView]
Delcam Picture File
.PICIO Pixar Picture [XnView]
.PICON Personal Icon
.PICS PICT Drawing Sequence
.PICT Macintosh Quickdraw/PICT Drawing [XnView]
.PICT2 Macintosh Quickdraw/PICT Drawing [XnView]
.PIF Windows Program Information File
IBM PIF Drawing
.PIG Lucas Arts Dark Forces WAD File
Ricoh IS30 [XnView]
.PIM PixMaker Project File
.PIN Pushpin Set
Compton's 3D World Atlas
Links Games Player Information File
Epic Pinball Data File
Graphisoft ArchiCAD
.PIP Microsoft Office Personalized Menu and Toolbar
.PIT Macintosh Compressed Archive File
.PIX PrintMaster Graphic File
Alias PIX Bitmap [XnView]
ESM Software Pix [XnView]
PABX Background [XnView]
Inset Systems Bitmap
SDSC Image Tool Alias Image
Truevision Targa Bitmap [XnView]
Vort [XnView]
.PIXAR Pixar Picture [XnView]
.PJ MKS Source Integrity File
SuperProject Project File
Project64 Game Progress File (N64 Emulator)
.PJL ProCite Term Lists and Journal Title Lists
.PJS Purejapan Viewer (proprietary picture format)
.PJT Foxpro Project Memo
AcuBench Project File
Starbase Codewright Editor Project
.PJX Foxpro Project
.PK CoolEdit96 Graphical Waveform [?]
TeX DVI Driver Packed Bitmap Font
.PK3 American McGee Alice Archive [Dragon UnPACKer]
Return to Castle Wolfenstein File
Heavy Metal: F.A.K.K.2 Archive [Dragon UnPACKer]
Quake III Engine PAK File (renamed zip file)
[Dragon UnPACKer or any Unzip Program]
...and other games
.PKA Compressed Archive File
.PKB QuickPOS (Point-Of-Sale) Keyboard Layout File
.PKB Oracle Package Body (sometimes included with other programs)
.PKD Top Secret Crypto Gold File
.PKF ARTiSAN Real-time Studio (UML CASE Tool) [See .IDF]
SecretAgent Key File (file encryption)
.PKG Microsoft Developer Studio Application Extension
AppleLink Package Compression Format File
Newton File/Application (Apple's old PDA)
Next Installer Script
MicroSim PCBoard External ASCII Package Definition File
(used for import and export)
.PKO PublicKey Security Object
.PKR PGP Public Keyring
Tony Hawk Pro Skater 2 Archive [Dragon UnPACKer]
.PKS Insight II NMR Peak Intensity/Integral
.PKS Oracle Package Specification (sometimes included with other programs)
.PKT Fidonet Packet
EtherPeek Collected Packets
TTC FireBerd 500 Capture File
.PL Harvard Palette (Harvard Graphics taken over by Serif)
PERL Program File
Linux Shell Executable Binary
PROLOG Program File (SWI-Prolog)
TeX Property List Font Metric
.PL1 3D Home Architect Room Plan
.PL3 Harvard Chart Palette (Harvard Graphics taken over by Serif)
.PL4 Pathloss Network Data File
.PLA STABCAL (stability calculation for aqueous systems) File
APT Assistant File (Business/Project planning)
Connectivity Memory Model Plasticity Function Additional Precision Input File
.PLB Foxpro Library
LogoShow Screensaver
STABCAL (stability calculation for aqueous systems) File
MicroSim PCBoard Package Library File
PCAD Library Management Module File
MSC.Fatigue v9.0 Improved Performance Patch
Insight II Pseudoatom Library
.PLC Lotus Add-in
.PLD PLD2 Source File (program due out 1Q2001)
PINO 3
.PLF InterVideo WinDVD Playlist File
.PLG REND386/AVRIL File
ButtonGadget (graphic button generator)
.PLH Paint Shop Pro Light Preset
.PLI Oracle 7 Data Description
.PLIST Property List XML File (used in Apple systems) [More Info]
.PLJ PlayJ Music Format
.PLK ATI Radeon Video Driver File
.PLL Clipper Prelinked Library
.PLM DisorderTracker2 Module
Panasonic SD Voice Editor File
.PLN WordPerfect Spreadsheet File
ArchiCAD Project File (3D CAD)
RealFlight Radio Control Aircraft Simulator Airplane Description
Home Plan Pro Architecture Design
.PLO STABCAL (stability calculation for aqueous systems) File
.PLR Descent Pilot File
Player File (used by many games)
.PLS DisorderTracker2 Sample
WinAmp MPEG PlayList File
Shoutcast File
MYOB Data File
MattBatt iAM-player
.PLT AutoCAD HPGL Vector Graphic Plotter File
HP Graphics Language (plotter) [SwiftView]
Gerber Sign-making Software File
Bentley's CAD MicroStation Driver Configuration for Plotting
Clipper 5 Pre-linked Transfer File
X-wing vs. Tie Fighter Pilot File
Palette
Lotus Organiser Paper Layout Definition (ver 1,2 maybe others)
Infinity Game Engine Bitmap Graphic [More Info]
.PLW PicoLog Data File
.PLX Executable Perl Script
Neurological Data for Statistical Analysis [File Format & More Info]
.PLY Autodesk Polygon
Blaze Media Pro File (multimedia software)
Harvard Spotlight Presentation Screen
PopMail Data
AIRO
.PM Presentation Manager Graphic [XnView]
Perl Module
Pagemaker File
.PM3 PageMaker 3 Document
.PM4 PageMaker 4 Document
.PM5 PageMaker 5 Document
.PM6 PageMaker 6 Document
.PMA Windows Performance Monitor File
.PMAP Pocket Mindmap Format File
(XML Format - Use any XML reading tool to read/manipulate.)
.PMC Windows Performance Monitor File
A4Tech Scanner Graphic
.PMD Pagemaker File
Polyphonic Ringtone File for Phones
PlanMaker Spreadsheet
.PME Plazmic Media Engine File
Pixela Digital Picture (Japanese site)
.PMF ArcReader GIS Mapping File
.PMG Pagemaker Group File (EPS graphic)
Paint Magic [XnView]
.PMI Pegasus Mail Message Folder Index File
.PML NT4 Performance Monitor Log File
Pegasus Mail Distribution List
PADGen Program Information
Windows Performance Monitor File
PageMaker Library
.PMM Pegasus Mail Message Folder
Amaris BTX/2 Program
.PMO Print Master Gold Text
.PMP Sony DSC-F1 Cyber-shot [Acdsee] [XnView]
AutoCAD R2000 Plotter Model Parameters File
Soldat Map Maker/Soldat Polymap File
.PMR Windows Performance Monitor File
PhotoModeler Project
.PMT Technics Keyboard Panel Memory File
Pagemaker File
.PMW Windows Performance Monitor File
.PMX Pegasus Mail File
.PN2 International Systems Consultancy ParsNegar II Word Processor
(Persian/Arabic and Urdu)
.PN3 Harvard Printer Driver (Harvard Graphics taken over by Serif)
.PND DATAIR Pension System Pending File
.PNF Precompiled Setup Information (Temporary file seen during installs)
.PNG Portable (Public) Network Graphic (proposed GIF replacement) [XnView]
[IrfanView]
PaintShop Pro Browser
Fireworks Image File
.PNL PEERNET Label Designer File
.PNM PBM Portable Any Map Graphic [XnView] (family of formats)
.PNR PEERNET Label Designer File
.PNS PEERNET Label Designer File
.PNT MacPaint Bitmap Graphic [XnView]
Paperport Thumbsview
MarkMail Qwk Reader Pointers
World Data Bank II Country Data File (derived from CIA data)
.PNTG MacPaint Bitmap Graphic [XnView]
.PNU PEERNET Label Designer File
.PNV CRiSP Harvest File
.PO2 STABCAL (stability calculation for aqueous systems) File
.PO3 STABCAL (stability calculation for aqueous systems) File
.PO5 STABCAL (stability calculation for aqueous systems) File
.POC PocoScript File
.POD Terminal Velocity Archive [Dragon UnPACKer]
.POG Descent2 File
.POH Optimized Geoworks .GOH File
.POL Music File
AscToHTM Policy File
Windows Policy File
.POLICY Java Policy File
.POO 8-bit Commodore 64 Machine Code [CCS64 Commodore 64 Emulator]
.POP dBase Popup Menu
PopMail Message Index
.POR Corel Painter Portfolio File
.POS ProCite Output Styles
QuickPOS IIF File (see IIF above)
Paint Shop Pro Polished Stone Preset
.POT PowerPoint Template [Buy Office XP at Shop.Microsoft]
.POTHTML Microsoft Powerpoint HTML Template
.POV Persistence of Vision Ray-tracer
.POW PowerChords Chord Chart
.PP Compressed Amiga Archive File
.PP2 Curious Labs Poser Prop File
.PP3NSCALE PlanetPress File (electronic forms manager)
.PP4 Picture Publisher
.PP5 Picture Publisher
.PPA PowerPoint Add-in [Buy Office XP at Shop.Microsoft]
.PPB WordPerfect Print Preview Button Bar
.PPC Roxio Easy CD Creator File
.PPD PostScript Printer Description
.PPF Turtle Beach Pinnacle Program File
Jasc Paint Shop Pro 7 Preset File
Micrografx Picture Publisher File (Micrografx now part of Corel)
PlayStation Patch File
MENSI PointScape 3D Laser Scanner Project File
.PPG Microsoft PowerPoint Presentation
Professor Franklin's Photo Print Gold
.PPI Microsoft PowerPoint Graphics File [Buy Office XP at Shop.Microsoft]
.PPJ Adobe Premiere Video Editing File
.PPK PuTTY Win32 Telnet/SSH Client
.PPL Harvard Polaroid Palette Plus ColorKey Driver
(Harvard Graphics taken over by Serif)
.PPM PBM Portable Pixelmap Graphic [XnView] [IrfanView]
Insight II Proton Chemical Shifts
.PPMA Portable Bitmap [XnView]
.PPO Clipper Preprocessor Output
.PPP Serif PagePlus Publication
Enfocus Preflight Profile
Parson Power Publisher
Punk Productions Picture [XnView]
.PPR Cognos PowerPlay OLAP Multidimensional Cube
.PPRINT Pics Print File
.PPS PowerPoint Slideshow [XnView] [Buy Office XP at Shop.Microsoft]
ArcView Processing Set Codes
.PPT PowerPoint Presentation [XnView] [Buy Office XP at Shop.Microsoft]
.PPTHTML Microsoft Powerpoint HTML Document
.PPX Serif PagePlus Publication
Cognos PowerPlay OLAP Reporting
.PPZ PowerPoint Packaged Presentation [Buy Office XP at Shop.Microsoft]
.PQ Adobe Pagemaker Default Printer Style
.PQA Palm Query Application File (database for wireless access)
.PQB PowerQuest Batch File
.PQF Corel Presentations File
.PQI PowerQuest Drive Imaging Software
PhreeqcI (Computer program for simulating chemical reactions in water.)
.PQO PhreeqcI (Computer program for simulating chemical reactions in water.)
.PQW Corel Presentations 9 Runtime
.PQX Power Quest DRive Image Index
.PR EROSION 3D Precipitation Parameters [Format (pdf)]
Sun Icon/Cursor [XnView]
.PR0 CheckMark Software Payroll (Can also be .PR1, .PR2, and/or .PR3)
.PR1 OzWin CompuServe E-mail/Forum Access Purged Message File
CheckMark Software Payroll (Can also be .PR1, .PR2, and/or .PR3)
.PR2 Persuasion Presentation
dBase IV Printer Driver
Proteus Session (personal light and sound stimulation system)
CheckMark Software Payroll (Can also be .PR1, .PR2, and/or .PR3)
.PR3 dBase IV PostScript Printer Driver
Aldus Persuasion Presentation
CheckMark Software Payroll (Can also be .PR1, .PR2, and/or .PR3)
.PRB xyALGEBRA File
.PRC Palmpilot Resource File [File Format]
Picture Gear Pocket [XnView]
.PRD Printer Driver
.PRE Freelance Presentation
Microsoft Programmer's WorkBench Settings
Insight II Dynamics Scratch File
NeroWave Editor Presets
.PREFS Preferences File (various)
.PRF Preferences File (various)
dBase IV Printer Driver
Monarch Portable Report File (data mining)
Profiler Output
PICS Rules File (associated with MSRATING.DLL)
Polychrome Recursive Format [XnView]
Fastgraph Pixel Run Format Grahics
.PRG Program File (various)
OzWin CompuServe E-mail/Forum Access Purged Message File
WAVmaker Program
Atari ST Program [Use Steem Engine Emulator]
SHARP MZ-series Emulator File
SpecEm Snapshot
.PRI LocoScript Printer Definitions
Prisms [XnView]
.PRJ Project File (various)
Visual Basic Project
Symantec Visual Cafe Project
MultiEdit Editor Project
3D Studio File
HitPlayer Advanced Playlist File
Monarch File (data mining)
ArcView Projections Definition File
.PRK Tony Hawk's Pro Skater 2 Saved Park
CampgroundMaster/ResortMaster Database
.PRL Process Revolution Object Library File (Diagrams, Process Maps, Flow Charts)
Paint Shop Pro Rough Leather Preset
Perl Script
.PRM Parameter File (various)
.PRN Printer Text File (various)
HP Printer Control Language [SwiftView]
DataCAD Windows Printer File
XYWrite Printer Driver
PostScript File
.PRO Guitar Chord File [On-line Guitar Archive]
PROLOG Program File
Creamware Pulsar Audio File
Sid Meier's SimGolf
Infinity Game Engine Projectile Type Description [More Info]
PV-WAVE Procedure File (Visualization and analysis)
Punch Pro Home Design File
Mussoft Chord Pro Song Format
.PROFILE UNIX Bourne or Kom Shell Environment File
FastTrack Client Profile
.PROJ Insight II NMR Project
.PROPERTIES Java Properties File (ASCII text file)
.PRP Palace Prop File
InstantDB Database File
.PRS Printer Resource File
WordPerfect Printer Resource Font File
dBase Procedure
Harvard File (Harvard Graphics taken over by Serif)
.PRT Printer Configuration (various)
Printer-formatted File
SCEdit Part File (Roland Sound Canvas sound modules; MIDI-related)
Unigraphics Part File (CAD modeling data)
CADKEY Part File
Pro/ENGINEER Model File
Associated with the W32/Parrot-A worm; particularly if found in the
Windows directory along with .EXE files of the same root name.
Process Revolution Template File (Diagrams, Process Maps, Flow Charts)
InterComm Pin Use Definition
.PRV PsiMail Internet Provider Template
Previous Version (used for files that change)
SecretAgent Private Key File (file encryption)
.PRX Foxpro Compiler Program
Process Revolution Diagram File (Diagrams, Process Maps, Flow Charts)
Microsoft Media Player ver 9 XML/Media File
Atari ST Executable File
.PRZ Freelance Graphics 97 File
.PS PostScript [Ghostscript] [XnView]
.PS2 Adobe Level II PostScript File
.PS3 Adobe Level III PostScript File
.PSB Pinnacle Sound Bank
Project Scheduler Configuration File
Paint Shop Pro Sunburst Preset
.PSC Paint Shop Pro Sculpture Preset
.PSD Photoshop Format [XnView] [IrfanView]
Apple Viewer File
DESIGN II for Windows General Flowsheet (Refining Process Simulation)
.PSE IBM Printer Page Segment Bitmap [XnView]
.PSEG IBM Printer Page Segment Bitmap [XnView]
.PSEG38PP IBM Printer Page Segment Bitmap [XnView]
.PSEG3820 IBM Printer Page Segment Bitmap [XnView]
.PSF Chiwriter PostScript Printer Font
PostScript Support File
PhotoStudio Graphic [XnView]
Insight II X-PLOR Molecular Structure File
Playstation Sound Format
.PSH Punch Home Design Series CAD Data File
.PSI PSION A-law Audio
.PSL MicroSim PCBoard Padstack Library File
Sierra Mastercook Layout File
.PSM Turbo Pascal Symbol Table
Protracker Studio Module Format
Epic Games Sound Data
SolidEdge CAD File
PrintShop Mail (desktop publishing)
.PSMDOC PrintShop Mail (desktop publishing)
.PSMODEL Delcam Powershape (3D CAD)
.PSN Post-it® Software Notes
.PSP PaintShop Pro Image [XnView] [IrfanView]
Project Scheduler Planning File
Prodea Synergy Procedure
.PSR Project Scheduler Resource File
.PSS Sony Playstation Game File
Axialis Screen Saver Producer File
Paint Shop Pro Sandstone Preset
.PST Microsoft Outlook Personal Folder File
Ulead Pattern [XnView]
Mastercam Post Processor File (CAD/CAM) (usually in .\MILL6 folder)
.PSW WinXP Backup Password File
Paint Shop Pro Straw Wall Preset
.PSX Dirty Little Helper Chat File
X-Plorer/X-Ploder, Cheat Machine, etc. Single Game Save
.PSY PLD2 System File
Psychedelic Windows Products
.PT Kodak Precision Transform [Download]
PassMark PerformanceTest File
.PT3 Harvard Device Driver (Harvard Graphics taken over by Serif)
PageMaker Template
.PT4 PageMaker Template
.PT5 PageMaker Template
.PTB Power Tab Guitar Tablature Editor
PubTach Batch Works Script
.PTC NRG Symphonie Patch File
.PTDB Peachtree Accounting Database
.PTH 4D Database Windows Pathname Document
.PTI IBM Configurator Configuration
.PTIF Pyramid Encoded TIFF (multiple resolutions in one file)
.PTK Red Alert 2 File
.PTL Site Builder Path Translation List
Python Template Language File
Rational Rose File (model-driven development tool)
Corel Painter Pattern, Selection or Texture File
Paint Shop Pro Tile Preset
.PTM PolyTracker Music Module
Microsoft MapPoint Map
PubTech BatchWorks Macro
.PTN PaperPort Thumbnail Images (Hidden file: PPTHUMB.PTN)
CADKEY Pattern File
.PTP Act! Modem Sync File
.PTR QMail Qwk Reader Pointer
.PTS Infinity Engine Game Tileset
Halflife Map Creation Debug File
.PTT Microsoft MapPoint Template
.PTX E-Transcript of Court Proceedings [Viewer]
Paint Shop Pro Texture Preset
.PUB PGP Public Key Ring
Ventura Publisher
Microsoft Publisher Document
The Sims (Maxis) Family Data
Print Perfect Gold Template
.PUBHTML Microsoft Publisher HTML Document
.PUBMHTML Microsoft Publisher Archived HTML Document
.PUD Warcraft II PUD Map [PUD Browser] [PUD Format]
.PUF Puffer Encrypted File (File & E-mail Encryption)
.PUT Instalit Script
.PUZ Across Lite Crossword Puzzle [FAQ]
General Name for a Puzzle File
(e.g., Los Angeles Times, New York Times Crossword Puzzle and others)
Packed Microsoft Publisher File
.PVA Hauppauge DVB-Software
.PVD Klos Technologies Packet Analyzer Data File
.PVL Instalit Library
.PVR PVR-CONV (Convert PVR files to MPG) (Italian site)
.PVS Scarlett Expert System Compiler Reserved Words File
(Scarlett is not presently available)
.PVT Local Fidonet Pointlist
.PW Professional Write Text File
.PWA Password Agent File
.PWC COSMI Street Maps and Vacation Planner
.PWD Pocket Word Document
AutoCAD Password File (ACAD.PWD)
Password Pro File
.PWF ProCite Workforms
POD-Bot Waypoint File (Instructs the movements of bots in Half-Life games.)
.PWI Notes for Windows CE
.PWK Password Keeper File
.PWL Password List
.PWM Pegasus Mail File
.PWP Photoworks Image File
Professional WritePlus Document
Seattle Film Works Multi-image File (Actually MGI PhotoSuite File)
[Filmworks Viewer]
[XnView]
.PWT HotDog PageWiz Template
Microsoft Pocket Word Template File
Autocad Publish-to-Web Template
.PWZ PowerPoint Wizard [Buy Office XP at Shop.Microsoft]
.PX Primary Index
Paradox Primer Database Index
.PXA Pixia Color Painter File [Japanese] [XnView]
Pegs [XnView]
.PXB Pixibox [XnView]
.PXD eJay Mixer File
.PXE Partial XML Envelope
.PXI Pixie File (scalable vector images viewed with an applet)
Note: The file $$d2k.pxi is associated with a Trojan
PlexTools CD Image [IsoBuster Data Recovery Tool]
.PXJ Stomp RecordNow MAX (CD burning software)
.PXL Pocket Excel Spreadsheet
.PXN PictureWorks PhotoEnhancer Graphic Image (Kodak format not now supported)
.PXR Pixar Picture [XnView]
.PXS Pegs [XnView]
.PXW Tamarack ArtiScan Driver [Driver Source]
.PY PYTHON Script
Yahoo Saved Messages
Oracle Batch Procedure
.PYC Compiler PYTHON Script
.PYW Python Script
(Used in Windows to indicate a script needs to be run using PYTHONW.EXE)
.PZ2 Curious Labs Poser Pose File
.PZ3 Curious Labs Poser Document
.PZA MGI PhotoSuite II/III/4 Album File
.PZC GraphPad Prism Script
.PZD Pizazz Plus Defaults
.PZF GraphPad Prism Project
.PZL Puzzle [XnView]
Lode Runner Game Puzzle
Jigs@w Puzzle (virtual jigsaw)
.PZM GraphPad Prism
.PZO Pizazz Plus Overlay
.PZP Pizazz Plus Palette
MGI PhotoSuite II/III/4 Project File [XnView]
.PZS Pizazz Plus Settings
MGI PhotoSuite II/III/4 Slide Show File
.PZT Pizazz Plus Transfer File
GraphPad Prism Template
.PZX Pizazz Plus Swap File
.PZZ Curious Labs Compressed Poser File