| Extension Abbreviation | Extension Full name | How to open the File Extension |
|---|---|---|
| .1 | Unix Section 1 Manual Page | How to open .1 file |
| .323 | H.323 Internet Telephony File | How to open .323 file |
| .!bt | BitTorrent Incomplete Download File | How to open .!bt file |
| .!qb | qBittorrent Partial Download File | How to open .!qb file |
| .!sync | BitTorrent Partially Synced File | How to open .!sync file |
| .!ut | uTorrent Incomplete Download | How to open .!ut file |
| ._eml | Windows Live Mail Email File | How to open ._eml file |
| ._nws | Windows Live Mail Newsgroup Copy File | How to open ._nws file |
| ._sys.lfo | Adware File | How to open ._sys.lfo file |
| .3dc | RacerMate 3D Course File | How to open .3dc file |
| .83p | TI-83 Calculator File | How to open .83p file |
| .8xp | TI-83 Plus Calculator File | How to open .8xp file |
| .aawdef | Ad-Aware Definitions File | How to open .aawdef file |
| .abr | Adobe Photoshop Brushes File | How to open .abr file |
| .acb | AOL Cab Launcher | How to open .acb file |
| .acl | AutoCorrect List File | How to open .acl file |
| .acs | Agent Character File | How to open .acs file |
| .ad | After Dark Screensaver | How to open .ad file |
| .adadownload | Adobe Download Assistant Partial Download File | How to open .adadownload file |
| .add | Dynamics AX Developer Documentation File | How to open .add file |
| .adi | Dynamics AX Developer Documentation Index File | How to open .adi file |
| .aepkey | Advanced Encryption Package Key File | How to open .aepkey file |
| .afploc | Apple Filing Protocol Location | How to open .afploc file |
| .agd | Agile Advantage E-mail Attachment | How to open .agd file |
| .ahd | Dynamics AX Online Help Data File | How to open .ahd file |
| .ahi | Dynamics AX Online Help Index File | How to open .ahi file |
| .aif | Symbian Application Information File | How to open .aif file |
| .aim | AOL Instant Messenger Launch File | How to open .aim file |
| .alt | Dynamics AX Temporary File | How to open .alt file |
| .aml | Microsoft Assistance Markup Language File | How to open .aml file |
| .annot | Adobe Digital Editions Annotations File | How to open .annot file |
| .aod | Dynamics AX Object Data File | How to open .aod file |
| .aoi | Dynamics AX Application Object Index File | How to open .aoi file |
| .aol | America Online File | How to open .aol file |
| .apf | Adobe Profile File | How to open .apf file |
| .appdownload | Mac App Store Partially Downloaded App | How to open .appdownload file |
| .appup | Erlang Application Upgrade File | How to open .appup file |
| .aria2 | aria2 Control File | How to open .aria2 file |
| .arr | Advanced RAR Password Recovery Project | How to open .arr file |
| .ash | Nintendo Wii System Menu File | How to open .ash file |
| .ass | Aegisub Advanced SubStation Alpha File | How to open .ass file |
| .atz | Atomic Time Zone File | How to open .atz file |
| .auz | Ableton Authorization File | How to open .auz file |
| .avastlic | Avast License File | How to open .avastlic file |
| .avgdx | AVG Diagnostics File | How to open .avgdx file |
| .awd | Award BIOS Update File | How to open .awd file |
| .awkw | Awkwords Word Generator File | How to open .awkw file |
| .az! | Vuze Partial Download File | How to open .az! file |
| .bbl | BibTeX Generated Bibliography File | How to open .bbl file |
| .bc | BitComet Partially Downloaded File | How to open .bc file |
| .bc! | BitComet Incomplete File | How to open .bc! file |
| .bdr | Publisher Borders File | How to open .bdr file |
| .bfc | Windows Briefcase File | How to open .bfc file |
| .bkmk | Yummy FTP Bookmark File | How to open .bkmk file |
| .blf | MasterWorks Working File | How to open .blf file |
| .bli | Thomson Speedtouch Firmware File | How to open .bli file |
| .bmk | Nokia Device Bookmark File | How to open .bmk file |
| .bnd | DB2 CLI Bind File | How to open .bnd file |
| .bootskin | Stardock Bootskin File | How to open .bootskin file |
| .box | Microsoft Store Download File | How to open .box file |
| .bp2 | AutoCAD Batch Plot File | How to open .bp2 file |
| .bp3 | AutoCAD Batch Plot File | How to open .bp3 file |
| .bpdx | Acrobat Batch PDX File | How to open .bpdx file |
| .bps | BPS Virus File | How to open .bps file |
| .bqy | Brio Query File | How to open .bqy file |
| .brushcategory | Painter Brush Category File | How to open .brushcategory file |
| .brushlibrary | Painter Brush Library | How to open .brushlibrary file |
| .bst | BibTeX Style Document | How to open .bst file |
| .bt! | BitSpirit Incomplete Download File | How to open .bt! file |
| .buf | Buffer File | How to open .buf file |
| .bup | McAfee Quarantined File | How to open .bup file |
| .c2u | Texas Instruments CBL 2 OS File | How to open .c2u file |
| .ca | Initial Telnet Cache | How to open .ca file |
| .cache | Cache File | How to open .cache file |
| .calb | Coolect Album File | How to open .calb file |
| .calibre | Calibre Device Data File | How to open .calibre file |
| .cas | Autodesk Cascade License File | How to open .cas file |
| .cbds | Comic Book DS File | How to open .cbds file |
| .cbt | Computer Based Training File | How to open .cbt file |
| .cdf-ms | ClickOnce Compiled Manifest File | How to open .cdf-ms file |
| .cerber3 | Cerber Ransomware Virus File | How to open .cerber3 file |
| .cfl | IMVU Product File | How to open .cfl file |
| .cfs | Lucene Compound Index File | How to open .cfs file |
| .cch | .NET Security Resolution Cache File | How to open .cch file |
| .cl | Cursor Library | How to open .cl file |
| .clkk | Clicker Keyboard | How to open .clkk file |
| .clkt | Clicker Template | How to open .clkt file |
| .clkw | Clicker Word Bank | How to open .clkw file |
| .clkx | Clicker Grid Set | How to open .clkx file |
| .clr | Animate Color Set | How to open .clr file |
| .cls | LaTeX Document Class File | How to open .cls file |
| .cml | CryptoMailer Encrypted File | How to open .cml file |
| .cmm | Corel Multimedia Manager Album | How to open .cmm file |
| .cmpkg | craftersmine Package | How to open .cmpkg file |
| .contour | Contour Screenplay File | How to open .contour file |
| .cos2 | Pinnacle Studio Cache File | How to open .cos2 file |
| .cp3 | Grand Prix 3 Cockpit Shape File | How to open .cp3 file |
| .cpu | Virtual CPU File | How to open .cpu file |
| .crashed | AbiWord Crash-Saved Document | How to open .crashed file |
| .crc | Total Commander Checksum File | How to open .crc file |
| .crd | Guitar Tabs | How to open .crd file |
| .crd | Windows CardSpace File | How to open .crd file |
| .csh | Photoshop Custom Shapes File | How to open .csh file |
| .ctf | Content Transformation File | How to open .ctf file |
| .ctf | AVG Update Control File | How to open .ctf file |
| .ctg | Canon Digital Camera Catalog File | How to open .ctg file |
| .cul | Windows Cursor Library | How to open .cul file |
| .cvf | CPU-Z Validation File | How to open .cvf file |
| .cvr | Microsoft Crash Report File | How to open .cvr file |
| .cxf | Picasa Collage File | How to open .cxf file |
| .da2 | Ad-Aware License File | How to open .da2 file |
| .dal | Download Accelerator Plus URL List | How to open .dal file |
| .dap | Download Accelerator Plus Partial Download | How to open .dap file |
| .dat | Piriform DAT File | How to open .dat file |
| .dat | Inno Setup Uninstaller Data File | How to open .dat file |
| .db | Windows Thumbnail Cache | How to open .db file |
| .dbx | Outlook Express E-mail Folder | How to open .dbx file |
| .dc1 | Bloomba E-mail Message | How to open .dc1 file |
| .dcover | Disc Cover File | How to open .dcover file |
| .dct | Dictionary File | How to open .dct file |
| .dctmp | DC++ Partially Downloaded File | How to open .dctmp file |
| .decrypt | Decrypted Microsoft ESD File | How to open .decrypt file |
| .dek | Memorize-It Flashcard Deck | How to open .dek file |
| .desktop | Desktop Entry File | How to open .desktop file |
| .devicesalt | NOOK Device Salt File | How to open .devicesalt file |
| .dic | Dictionary File | How to open .dic file |
| .disabled | Spybot - Search & Destroy Disabled File | How to open .disabled file |
| .diskdefines | Linux LiveCD Information File | How to open .diskdefines file |
| .dke | DriveLock FDE Disk Key File | How to open .dke file |
| .dlm | Akamai Download Manager File | How to open .dlm file |
| .dmx-info | DriverMax Driver Information File | How to open .dmx-info file |
| .done | Marker File | How to open .done file |
| .downloading | Pando Incomplete Download File | How to open .downloading file |
| .drc | DRM Rights Object | How to open .drc file |
| .dsc | Nikon Disk Identification File | How to open .dsc file |
| .dskin | DockX Skin | How to open .dskin file |
| .dstudio | DownloadStudio Incomplete Download | How to open .dstudio file |
| .dtapart | DownThemAll! Partially Downloaded File | How to open .dtapart file |
| .dtf | Domino Temporary File | How to open .dtf file |
| .dump | Google BreakPad Crash Log File | How to open .dump file |
| .dus | Readiris Font Dictionary | How to open .dus file |
| .dwc | Emulex DWC Firmware Update File | How to open .dwc file |
| .dwl | TurboCAD Drawing Lock File | How to open .dwl file |
| .dwl2 | AutoCAD Drawing Lock File | How to open .dwl2 file |
| .dwlibrary | Paperless Document Library | How to open .dwlibrary file |
| .dwn | Firmware Update File | How to open .dwn file |
| .ebn | Philips Firmware Update File | How to open .ebn file |
| .edc | Kryptel Lite Encrypted File | How to open .edc file |
| .eek | Arachne Network-Enabled Script | How to open .eek file |
| .ef2 | Internet Download Manager Export File | How to open .ef2 file |
| .efl | External Format Language File | How to open .efl file |
| .egt | EagleGet Temporary File | How to open .egt file |
| Outlook Express Email Message | How to open .email file | |
| .enc | Encore Musical Notation File | How to open .enc file |
| .enf | EndNote Filter File | How to open .enf file |
| .enml | Evernote for Android Note | How to open .enml file |
| .eqn | WordPerfect Equation | How to open .eqn file |
| .erl | GameGuard Error Log File | How to open .erl file |
| .err | AutoCAD Error Log File | How to open .err file |
| .esd | Windows Electronic Software Download File | How to open .esd file |
| .event | Corel Cataloged Folder File | How to open .event file |
| .ewnet | Ultiboard Netlist File | How to open .ewnet file |
| .exd | Control Information Cache File | How to open .exd file |
| .exp | Melco Embroidery File | How to open .exp file |
| .exp | Bernina Embroidery File | How to open .exp file |
| .extra | Google BreakPad Crash Log Extra File | How to open .extra file |
| .eyb | Microsoft Encarta Yearbook Update File | How to open .eyb file |
| .ezlog | Skype Extras Manager Log File | How to open .ezlog file |
| .ezw | easyOFFER Real Estate Form File | How to open .ezw file |
| .fb! | FlashGet Incomplete Download File | How to open .fb! file |
| .fdr | Windows Error Report File | How to open .fdr file |
| .feedback | Expression SketchFlow Feedback File | How to open .feedback file |
| .ffl | Fetion Emoticons Package | How to open .ffl file |
| .ffu | Full Flash Update Image File | How to open .ffu file |
| .file | Generic Windows File | How to open .file file |
| .fl3 | Flash 3D File | How to open .fl3 file |
| .flf | Microsoft Dynamics NAV License File | How to open .flf file |
| .flk | AccountEdge Company Lock File | How to open .flk file |
| .flowmaplibrary | Painter Flowmap Library | How to open .flowmaplibrary file |
| .fmelic | FME License File | How to open .fmelic file |
| .fnd | Windows Saved Search | How to open .fnd file |
| .fnlf | Scarlett Plug-in Suite License File | How to open .fnlf file |
| .fpfv | File Protected From Virus | How to open .fpfv file |
| .fpk | JetForm FormFlow File | How to open .fpk file |
| .frk | Macintosh Resource or Data Fork | How to open .frk file |
| .frm | Form File | How to open .frm file |
| .ftil | e-Hastakshar Contract Note | How to open .ftil file |
| .ftploc | FTP Location | How to open .ftploc file |
| .fw | Firmware Update File | How to open .fw file |
| .g1a | Casio Graphing Calculator Add-in File | How to open .g1a file |
| .g3a | Casio Prizm Add-in File | How to open .g3a file |
| .gau | Flight Simulator Gauge File | How to open .gau file |
| .gg | Google Desktop Gadget File | How to open .gg file |
| .glink | Google Drive External File Shortcut | How to open .glink file |
| .gly | Microsoft Word Glossary File | How to open .gly file |
| .god | God Configuration File | How to open .god file |
| .gp4 | Guitar Pro 4 Tablature | How to open .gp4 file |
| .gpg | GNU Privacy Guard Public Keyring | How to open .gpg file |
| .gradientlibrary | Painter Gradient Library | How to open .gradientlibrary file |
| .gradients | Painter Gradation Library | How to open .gradients file |
| .growlregdict | Growl Temp File | How to open .growlregdict file |
| .gsp | Geometer's Sketchpad File | How to open .gsp file |
| .gta | Microsoft Groove Tool Archive | How to open .gta file |
| .h1q | Microsoft Help Merged Query Index File | How to open .h1q file |
| .hdk | HotDocs Registration File | How to open .hdk file |
| .hdx | Delphi MultiHelp Index File | How to open .hdx file |
| .hex | Hexadecimal Source File | How to open .hex file |
| .hlb | VMS / VAX Help Library | How to open .hlb file |
| .hlx | ATI Radeon Video Driver Support File | How to open .hlx file |
| .hmx | Help & Manual 4 Project | How to open .hmx file |
| .hps | HP Digital Sender Metadata File | How to open .hps file |
| .hs | Motorola Flash Flex File | How to open .hs file |
| .hxa | Microsoft Help 2 Attribute Definition File | How to open .hxa file |
| .hxc | Microsoft Help 2 Collection Definition File | How to open .hxc file |
| .hxe | Microsoft Help 2 Sample Definition File | How to open .hxe file |
| .hxk | Microsoft Help 2 Index File | How to open .hxk file |
| .hxt | Microsoft Help 2 Table of Contents File | How to open .hxt file |
| .hyp | Dictionary Information File | How to open .hyp file |
| .chk | Saved File Fragment | How to open .chk file |
| .chksplit | Archiver Split Checksum File | How to open .chksplit file |
| .chunk001 | File Splitter Split Archive Part 1 | How to open .chunk001 file |
| .chw | Compiled Help Index File | How to open .chw file |
| .ical | iCalendar File | How to open .ical file |
| .icalendar | iCalendar File | How to open .icalendar file |
| .icma | InCopy Assignment File | How to open .icma file |
| .icontainer | CandyBar iContainer File | How to open .icontainer file |
| .ics | Calendar File | How to open .ics file |
| .id | Lotus Notes User ID File | How to open .id file |
| .idlk | Adobe InDesign Lock File | How to open .idlk file |
| .idx | Movie Subtitle File | How to open .idx file |
| .ifl | 3ds Max Image File List | How to open .ifl file |
| .iix | Translation Memory Index File | How to open .iix file |
| .imageportfoliolibrary | Painter Image Portfolio Library | How to open .imageportfoliolibrary file |
| .imapmbox | IMAP Mailbox | How to open .imapmbox file |
| .iml | ACT! Internet Mail Message | How to open .iml file |
| .imy | iMelody Ringtone File | How to open .imy file |
| .in | Spyware File | How to open .in file |
| .inca | InCopy CS3 Assignment File | How to open .inca file |
| .ind | Memory Stick Formatting File | How to open .ind file |
| .indk | Adobe Shortcut Set File | How to open .indk file |
| .inetloc | Internet Location | How to open .inetloc file |
| .info | Texinfo Document | How to open .info file |
| .ing | MasterCook Ingredients File | How to open .ing file |
| .inlk | Adobe InDesign Lock File | How to open .inlk file |
| .inm | FaxMaster Document | How to open .inm file |
| .iobit | Advanced SystemCare Rollback File | How to open .iobit file |
| .ipsw | iPod and iPhone Software Update File | How to open .ipsw file |
| .isn | Installer Source File | How to open .isn file |
| .itc | iTunes Cover Flow Data File | How to open .itc file |
| .jad | Java Application Descriptor File | How to open .jad file |
| .jc | FlashGet Partial Download | How to open .jc file |
| .jc! | FlashGet Incomplete Download | How to open .jc! file |
| .jcl | JCloze File | How to open .jcl file |
| .jcw | JCross File | How to open .jcw file |
| .jms | Masher Project | How to open .jms file |
| .jmt | JMatch File | How to open .jmt file |
| .jmx | JMix File | How to open .jmx file |
| .jqz | JQuiz File | How to open .jqz file |
| .jrs | Exchange Reserve Transaction Log File | How to open .jrs file |
| .key | Software License Key File | How to open .key file |
| .key | LightWave License File | How to open .key file |
| .khd | Dynamics AX Kernel Help Data File | How to open .khd file |
| .khi | Dynamics AX Kernel Help Index File | How to open .khi file |
| .kmr | KnowledgeMill Link File | How to open .kmr file |
| .kpf | Kindle Create Publishable File | How to open .kpf file |
| .kwm | WebMoney Key File | How to open .kwm file |
| .kyr | Lotus Domino Key Ring File | How to open .kyr file |
| .mab | Mozilla Address Book | How to open .mab file |
| .mad | Access Module Shortcut | How to open .mad file |
| .mag | Access Diagram Shortcut File | How to open .mag file |
| .mailplanelicense | Mailplane License File | How to open .mailplanelicense file |
| .mailtoloc | Mail Internet Location File | How to open .mailtoloc file |
| .manifest | Steam Manifest File | How to open .manifest file |
| .map | TECkit Mapping File | How to open .map file |
| .mar | Mozilla Archive | How to open .mar file |
| .mat | Microsoft Access Table Shortcut File | How to open .mat file |
| .mau | Media Attachment Unit | How to open .mau file |
| .mb | Kodak EasyShare Data File | How to open .mb file |
| .mbb | Kodak EasyShare Data File | How to open .mbb file |
| .mbs | Opera Mailbox File | How to open .mbs file |
| .mc2 | MasterCook 5 Cookbook File | How to open .mc2 file |
| .mcf | MasterCook 2 Cookbook File | How to open .mcf file |
| .mcfi | Maya Initial Fluid Cache File | How to open .mcfi file |
| .mcfp | Maya Fluid Cache Playback File | How to open .mcfp file |
| .mci | Media Control Interface File | How to open .mci file |
| .mco | Live Messenger Winks File | How to open .mco file |
| .md0 | Adobe Photoshop Metadata Cache File | How to open .md0 file |
| .md5 | MD5 Checksum File | How to open .md5 file |
| .mdf | Translation Memory Data Find File | How to open .mdf file |
| .mdw | Access Workgroup File | How to open .mdw file |
| .merlinlicense | Merlin License File | How to open .merlinlicense file |
| .mfil | Blizzard Software Update File | How to open .mfil file |
| .mgdatabase | MacGourmet Deluxe Database File | How to open .mgdatabase file |
| .mgo | MacGourmet Recipe File | How to open .mgo file |
| .mgt | Musicnotes Guitar Guru Song File | How to open .mgt file |
| .mjbooktemplate | MacJournal Book Template | How to open .mjbooktemplate file |
| .mjdoc | MacJournal Document | How to open .mjdoc file |
| .mlpkginstall | Support Package Installer File | How to open .mlpkginstall file |
| .mls | CrystalPlayer Playlist | How to open .mls file |
| .mmo | Memory Map Overlay File | How to open .mmo file |
| .mnl | AutoCAD Menu LISP File | How to open .mnl file |
| .mnx | FoxPro Menu | How to open .mnx file |
| .mobileprovision | Xcode Mobile Provisioning Profile | How to open .mobileprovision file |
| .montage | Montage Screenplay File | How to open .montage file |
| .mpcpl | Media Player Classic Playlist | How to open .mpcpl file |
| .mrk | DPOF Auto Print Order File | How to open .mrk file |
| .msf | Mail Summary File | How to open .msf file |
| .msi | Windows Installer Package | How to open .msi file |
| .mso | Microsoft Office Macro Reference File | How to open .mso file |
| .mso | Inline E-mail Attachment | How to open .mso file |
| .msrcincident | Windows Remote Assistance Invitation File | How to open .msrcincident file |
| .ms-tnef | MS Transport Neutral Encapsulation Format | How to open .ms-tnef file |
| .msu | Windows Vista Update Package | How to open .msu file |
| .mta | Samsung AllShare Metadata File | How to open .mta file |
| .mtd | Musicnotes Digital Sheet Music File | How to open .mtd file |
| .mtf | Translation Memory Translations File | How to open .mtf file |
| .mthd | MOPEKS Method File | How to open .mthd file |
| .mvi | AutoCAD Movie Command File | How to open .mvi file |
| .mwd | MyWorkDrive Client Shortcut File | How to open .mwd file |
| .mwf | Translation Memory Word Find File | How to open .mwf file |
| .mwlic | MoneyWell License File | How to open .mwlic file |
| .mxn | Miinoto Exchangeable Note File | How to open .mxn file |
| .mzz | Microsoft .NET Download Package | How to open .mzz file |
| .na2 | Netscape Address Book File | How to open .na2 file |
| .nav | MSN Application Extension File | How to open .nav file |
| .nav2 | WinAVI Temporary Navigation File | How to open .nav2 file |
| .ncw | Nero CoverDesigner Wizard File | How to open .ncw file |
| .nd5 | Renamed NDS File | How to open .nd5 file |
| .ndl | Lotus Notes Doclink File | How to open .ndl file |
| .new | New G-Suite File | How to open .new file |
| .nch | Outlook Express Folder File | How to open .nch file |
| .nick | Outlook 2000 Nickname File | How to open .nick file |
| .njb | Nikon Photo Index File | How to open .njb file |
| .nk2 | Outlook 2002 Nickname File | How to open .nk2 file |
| .nomedia | Android No Media File | How to open .nomedia file |
| .nozzlelibrary | Painter Nozzle Library | How to open .nozzlelibrary file |
| .nss | Magentic Screensaver File | How to open .nss file |
| .ntf | MediaFACE II CD Label File | How to open .ntf file |
| .nth | Nokia Series 40 Theme File | How to open .nth file |
| .nup | Smart Security Update File | How to open .nup file |
| .nvi | NVIDIA Driver File | How to open .nvi file |
| .nwp | Magentic Wallpaper File | How to open .nwp file |
| .ob! | Orbit Downloader Incomplete Download | How to open .ob! file |
| .ocr | Subtitle Workshop OCR Script | How to open .ocr file |
| .odf | OpenDocument Formula | How to open .odf file |
| .ods | Outlook Express 5 Mailbox | How to open .ods file |
| .ofr | SMS Offer Manager File | How to open .ofr file |
| .olb | OLE Object Library | How to open .olb file |
| .ook | Arachne Batch Script | How to open .ook file |
| .opdownload | Opera Partially Downloaded File | How to open .opdownload file |
| .opf | FlipAlbum File | How to open .opf file |
| .ost | Outlook Offline Data File | How to open .ost file |
| .otc | OpenDocument Chart Template | How to open .otc file |
| .otf | OpenDocument Formula Template | How to open .otf file |
| .owg | OutWit Gear Database | How to open .owg file |
| .owm | OutWit XML Mashup File | How to open .owm file |
| .p10 | Certificate Request File | How to open .p10 file |
| .p2p | FolderShare Placeholder File | How to open .p2p file |
| .p7m | Digitally Encrypted Message | How to open .p7m file |
| .p7r | Certificate Request Response File | How to open .p7r file |
| .package | FOREVER Art Kit Package | How to open .package file |
| .pad | ACT! Database Pointer File | How to open .pad file |
| .pakm | PAKM Package File | How to open .pakm file |
| .pamp | Poweramp Album Art File | How to open .pamp file |
| .pando | Pando File | How to open .pando file |
| .pap | Corel Painter Paper Texture | How to open .pap file |
| .paperlibrary | Painter Paper Library | How to open .paperlibrary file |
| .part | Partially Downloaded File | How to open .part file |
| .partial | Internet Explorer Partially Downloaded File | How to open .partial file |
| .patternlibrary | Painter Pattern Library | How to open .patternlibrary file |
| .patterns | Painter Pattern Library | How to open .patterns file |
| .pdpcomp | Pdplayer Composition File | How to open .pdpcomp file |
| .pekey | PhysicsEditor License Key File | How to open .pekey file |
| .pes | Brother PE Embroidery Format | How to open .pes file |
| .pgp | PGP Security Key | How to open .pgp file |
| .pid | Process ID File | How to open .pid file |
| .pkpass | Passbook Pass File | How to open .pkpass file |
| .pla | iriver iQuickList File | How to open .pla file |
| .playset | Souptoys Playset File | How to open .playset file |
| .plf | Papyrus License File | How to open .plf file |
| .pls | Multimedia Playlist File | How to open .pls file |
| .plsk | Messenger Plus! Live Skin Pack | How to open .plsk file |
| .pn | Powernoodle File (Discontinued) | How to open .pn file |
| .ppf | Paint Shop Pro Soft Plastic Preset File | How to open .ppf file |
| .ppi | Yamaha Pack Installation File | How to open .ppi file |
| .ppk | PuTTY Private Key File | How to open .ppk file |
| .ppm_b | Nokia PPM Flash File | How to open .ppm_b file |
| .prs | PlayStation Radio Player Location | How to open .prs file |
| .psar | PSP Update File | How to open .psar file |
| .psf | HP-UX Product Specification File | How to open .psf file |
| .psi | PrimalScript Online Help Shortcut | How to open .psi file |
| .psw | Windows Password Reset Disk File | How to open .psw file |
| .pt | Panther Project File | How to open .pt file |
| .pth | 4D Path Document | How to open .pth file |
| .ptr | Flash Intro Project File | How to open .ptr file |
| .pvk | Private Key File | How to open .pvk file |
| .pvm | HP Photo Album | How to open .pvm file |
| .qds | Windows Directory Query File | How to open .qds file |
| .qiz | Exam Builder Quiz | How to open .qiz file |
| .qua | Avira AntiVir Quarantined File | How to open .qua file |
| .qwq | OpenQwaq Auto-Launch File | How to open .qwq file |
| .qxl | QuarkXPress Library | How to open .qxl file |
| .radiumkey2 | Radium 2 License File | How to open .radiumkey2 file |
| .raskinlicense | Raskin License File | How to open .raskinlicense file |
| .rat | PICS Rating File | How to open .rat file |
| .redir | Spotify Executable Redirect File | How to open .redir file |
| .reloc | Windows EXE Relocation Section File | How to open .reloc file |
| .rem | BlackBerry Encrypted Data File | How to open .rem file |
| .req | SSL Certificate Request File | How to open .req file |
| .req | Canon SD Card Version Request File | How to open .req file |
| .rfb | RoboForm Bookmark File | How to open .rfb file |
| .rfc | RoboForm Contact File | How to open .rfc file |
| .rfn | RoboForm Safenote File | How to open .rfn file |
| .rfp | RoboForm Passcard File | How to open .rfp file |
| .rft | RoboForm Identity File | How to open .rft file |
| .rjs | RealJukebox Skin File | How to open .rjs file |
| .rmf | Adobe Rights Management Document | How to open .rmf file |
| .rmh | Rights-Managed HTML Document | How to open .rmh file |
| .rml | Elixir Report Template File | How to open .rml file |
| .rnd | PGP Random Seed File | How to open .rnd file |
| .rov | Report Object Variable | How to open .rov file |
| .rpmsg | Outlook Restricted Permission Message | How to open .rpmsg file |
| .rsa | RSA Certificate File | How to open .rsa file |
| .rsa | Minecraft JAR Codesign File | How to open .rsa file |
| .rtc | Live Meeting Connection File | How to open .rtc file |
| .rtm | LabVIEW Run-Time Menu File | How to open .rtm file |
| .rwlibrary | Paperless Receipt Library | How to open .rwlibrary file |
| .rwz | Outlook Rules Wizard File | How to open .rwz file |
| .rxc | Roxio Certificate File | How to open .rxc file |
| .sbc | Office Accounting Company Shortcut File | How to open .sbc file |
| .sbk | Multimedia ToolBook System Book | How to open .sbk file |
| .sc | Space Engine Script | How to open .sc file |
| .sc2locale | Blizzard StarCraft 2 Localization File | How to open .sc2locale file |
| .scriptlibrary | Painter Script Library | How to open .scriptlibrary file |
| .scw | Score Writer Document | How to open .scw file |
| .sdr | Dell Support File | How to open .sdr file |
| .sdx | Kivuto Secure Download Manager File | How to open .sdx file |
| .search-ms | Windows Saved Search File | How to open .search-ms file |
| .sec | PGP Secret Key Ring | How to open .sec file |
| .secure | Septium Secure Document | How to open .secure file |
| .selectionportfoliolibrary | Painter Selection Portfolio Library | How to open .selectionportfoliolibrary file |
| .sf | Minecraft JAR Signature File | How to open .sf file |
| .sft | Microsoft App-V Sequencer File | How to open .sft file |
| .sfv | Simple File Verification File | How to open .sfv file |
| .sha1 | SHA-1 Hash File | How to open .sha1 file |
| .sha256 | FileVerifier++ SHA-256 Hashes File | How to open .sha256 file |
| .sha512 | SHA 512 Hash File | How to open .sha512 file |
| .shortcut | Asutype Shortcut | How to open .shortcut file |
| .shs | Microsoft Scrap File | How to open .shs file |
| .shv | Husqvarna Viking Embroidery File | How to open .shv file |
| .shx | Motorola Flash Superfile | How to open .shx file |
| .sidb | iTunes Authorization Data File | How to open .sidb file |
| .sidd | iTunes Authorization Data File | How to open .sidd file |
| .sidn | iTunes Authorization Data File | How to open .sidn file |
| .sis | Symbian Installation File | How to open .sis file |
| .sis.dm | Ovi Store DRM-Protected Application | How to open .sis.dm file |
| .sisx | Symbian OS Installation File | How to open .sisx file |
| .sisx.dm | Nokia Ovi Store DRM-Protected Application | How to open .sisx.dm file |
| .sk | Safari History Index File | How to open .sk file |
| .skba | SketchBook Pro Animation File | How to open .skba file |
| .skindex | Mail Index File | How to open .skindex file |
| .skr | PGP Private Keyring | How to open .skr file |
| .slb | AutoCAD Slide Library | How to open .slb file |
| .slf | Symantec License File | How to open .slf file |
| .sls | Image Playlist | How to open .sls file |
| .slupkg-ms | XrML Digital License Package | How to open .slupkg-ms file |
| .smrd | Adobe InDesign Filter File | How to open .smrd file |
| .smwt | Adobe InDesign Filter | How to open .smwt file |
| .snf | Starry Night Pro Document | How to open .snf file |
| .snm | Netscape Mail Index | How to open .snm file |
| .snt | Sticky Notes File | How to open .snt file |
| .spd | Form·Z Suspended Render File | How to open .spd file |
| .spk | Synology Package | How to open .spk file |
| .split | Archiver Split File | How to open .split file |
| .spx | Pfaff Stitch Pattern File | How to open .spx file |
| .sr0 | SecuROM Analysis File | How to open .sr0 file |
| .srg | Ketron Single Registration File | How to open .srg file |
| .ssc | Stellarium Script | How to open .ssc file |
| .ssd | WindowBlinds Skin File List | How to open .ssd file |
| .sslf | HLSW Shared Server List File | How to open .sslf file |
| .sst | Serialized Certificate Store File | How to open .sst file |
| .ssw | Sony Ericsson Firmware File | How to open .ssw file |
| .std | CD/DVD Label Template | How to open .std file |
| .sth | Lotus Domino Stash File | How to open .sth file |
| .stmb | Synclavier Timbre File | How to open .stmb file |
| .storymill | StoryMill Project File | How to open .storymill file |
| .sum | Garmin Checksum File | How to open .sum file |
| .svn-work | Subversion Cache File | How to open .svn-work file |
| .swj | SolidWorks Journal File | How to open .swj file |
| .swp | Vi Swap File | How to open .swp file |
| .sxm | StarMath Formula | How to open .sxm file |
| .t$m | AVG Internet Security Temporary File | How to open .t$m file |
| .tbs | TuneUp Utilities Boot Screen | How to open .tbs file |
| .tcr | TouchMagix Creative Suite Published File | How to open .tcr file |
| .tcz | Tiny Core File | How to open .tcz file |
| .td | Thunder Incomplete Download File | How to open .td file |
| .tdl | MathType Translator Definition Language | How to open .tdl file |
| .tec | TECkit Compiled Mapping File | How to open .tec file |
| .temp | Temporary (Temp) File | How to open .temp file |
| .tfil | Blizzard Software Update File | How to open .tfil file |
| .thm | Sony Ericsson Theme File | How to open .thm file |
| .tip | TuneUp Utilities Icon Package | How to open .tip file |
| .tla | TuneUp Utilities Startup Logo | How to open .tla file |
| .tlb | OLE Type Library | How to open .tlb file |
| .tls | TuneUp Utilities Logon Screen | How to open .tls file |
| .tmb | Timbuktu Pro Connection Document | How to open .tmb file |
| .tmpl | Xfire User Interface Template | How to open .tmpl file |
| .tnef | Transport Neutral Encapsulation Format | How to open .tnef file |
| .tnsp | TI-Nspire PublishView Document | How to open .tnsp file |
| .toc | Eudora Table of Contents | How to open .toc file |
| .torrent | BitTorrent File | How to open .torrent file |
| .tpkey | TexturePacker License Key File | How to open .tpkey file |
| .tpl | Document Template | How to open .tpl file |
| .tpm | Transformation Parameters Model File | How to open .tpm file |
| .tpm | Trusted Platform Module Password File | How to open .tpm file |
| .trace | VMware ThinApp Trace Log File | How to open .trace file |
| .tscdf | TechSmith Camtasia Device Frame File | How to open .tscdf file |
| .tsk | TTPod Skin | How to open .tsk file |
| .tstream | SwarmPlayer Streaming Torrent | How to open .tstream file |
| .tt2 | Microsoft Temporary Font Installation File | How to open .tt2 file |
| .ttx | Trados TagEditor File | How to open .ttx file |
| .tvl | TurboTax File | How to open .tvl file |
| .uds | NetBackup UNIX Domain Socket File | How to open .uds file |
| .uls | NetMeeting User Location Service File | How to open .uls file |
| .unk | Unknown File | How to open .unk file |
| .unknown | Unknown File Type | How to open .unknown file |
| .unl | Garmin Unlock File | How to open .unl file |
| .upg | Upgrade File | How to open .upg file |
| .urr | Uniface Signatures File | How to open .urr file |
| .vbt | Spyware Doctor Temporary Scan File | How to open .vbt file |
| .vbt | iAntiVirus Temporary Scan File | How to open .vbt file |
| .vdi | StepMania Debug Resource File | How to open .vdi file |
| .vdjsend | VirtualDJ Send File | How to open .vdjsend file |
| .ver | Version Record | How to open .ver file |
| .vfs | Virtual File System Index | How to open .vfs file |
| .vir | Virus-Infected File | How to open .vir file |
| .vlcl | VMware Localization File | How to open .vlcl file |
| .vmdk-converttmp | VMWare Fusion Temporary File | How to open .vmdk-converttmp file |
| .vmf_autosave | Valve Hammer Editor Autosave File | How to open .vmf_autosave file |
| .vmg | Nokia Text Message | How to open .vmg file |
| .vmhf | VMware Hot Fix File | How to open .vmhf file |
| .vmhr | VMware Hot Fix Request File | How to open .vmhr file |
| .vmsg | VMware Application Message File | How to open .vmsg file |
| .vncloc | Screen Sharing VNC Internet Location | How to open .vncloc file |
| .vor | StarOffice Template | How to open .vor file |
| .vpa | VPchat Chat Gestures File | How to open .vpa file |
| .vpc6 | Virtual Machine Package | How to open .vpc6 file |
| .vpc7 | Virtual Machine Package | How to open .vpc7 file |
| .w | Google Toolbar Search History File | How to open .w file |
| .wal | Winamp Modern Skin | How to open .wal file |
| .wba | WindowBlinds Compressed Skin | How to open .wba file |
| .wcinv | Windows Meeting Space Invitation File | How to open .wcinv file |
| .wcm | Microsoft Works Communications Script | How to open .wcm file |
| .wdseml | Thunderbird Searchable Email File | How to open .wdseml file |
| .weavelibrary | Painter Weave Library | How to open .weavelibrary file |
| .wgs | Walk-Graph Segment File | How to open .wgs file |
| .wje | WinJournal Entry | How to open .wje file |
| .wjf | WinJournal Journal File | How to open .wjf file |
| .wlx | Windows Live Mesh Sync File | How to open .wlx file |
| .wordlist | Desktop Poet Word List File | How to open .wordlist file |
| .wrts | Wrts File | How to open .wrts file |
| .wsz | Winamp Classic Skin | How to open .wsz file |
| .wtc | Logitech Webcam File | How to open .wtc file |
| .wul | WinUHA Language File | How to open .wul file |
| .wwd | Works Wizard File | How to open .wwd file |
| .wzmul | WinZip Registration File | How to open .wzmul file |
| .xensearch | XenCenter Saved Search File | How to open .xensearch file |
| .xlnk | XML Shortcut File | How to open .xlnk file |
| .xlw | Microsoft Excel Workspace | How to open .xlw file |
| .xmp | Extensible Metadata Platform File | How to open .xmp file |
| .xnk | Exchange Shortcut | How to open .xnk file |
| .xol | PowerDesigner Object Language File | How to open .xol file |
| .xpr | PressIt Disc Label | How to open .xpr file |
| .xsig | XAdES XML Signature File | How to open .xsig file |
| .xslic | XenServer License File | How to open .xslic file |
| .xwf | OmniPage Workflow File | How to open .xwf file |
| .xxx | Compucon Singer Embroidery File | How to open .xxx file |
| .ybd | YobiDrive Link File | How to open .ybd file |
| .ybk | Microsoft Encarta Yearbook File | How to open .ybk file |
| .z1 | ZoneAlarm Renamed VB File | How to open .z1 file |
| .z80 | TI-83 and 84 Plus Calculator File | How to open .z80 file |
| .zm1 | ZoneAlarm Renamed MDA File | How to open .zm1 file |
| .zm2 | ZoneAlarm Renamed MDZ File | How to open .zm2 file |
| .zm3 | ZoneAlarm Renamed NCH File | How to open .zm3 file |
| .zm9 | ZoneAlarm MailSafe Renamed Zip File | How to open .zm9 file |
| .zml | Zooming Markup Language File | How to open .zml file |
| .ztf | DVD Label Template File | How to open .ztf file |
| .ztr | DVD Label Template Media File | How to open .ztr file |
| .zvpl | Visual Paradigm License File | How to open .zvpl file |
| .zzz | CCleaner Securely Deleted File | How to open .zzz file |
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