alphabetical list of extensions

System Files

File extension The full name of the file Popularity
File extension 0 Shared Library Link File StarStar
File extension 000 Indexing Service Data File Star
File extension 2FS Puppy Linux Save State File StarStarStar
File extension 386 Windows Virtual Device Driver Star
File extension 3FS Puppy Linux Save State File StarStar
File extension 73U TI-73 Explorer Operating System File StarStar
File extension 8XU TI-83 Plus Operating System File StarStar
File extension ADM Administrative Template File StarStarStar
File extension ADML Microsoft administrative language-specific XML template file StarStar
File extension ADMX Group Policy Administrative Template File StarStarStar
File extension ADV Audio Driver File Star
File extension AML Microsoft Assistance Markup Language StarStarStar
File extension ANI Animated cursor StarStarStarStar
File extension ANN Help Annotations StarStar
File extension AOS ARCHOS PCtablet Firmware File StarStar
File extension ASEC Android Secure Application File StarStarStar
File extension ATAHD ATA Hard Drive Flag File Star
File extension AUTOMATICDESTINATIONS-MS Windows Jump List File StarStar
File extension BASHRC Bash Non-Interactive Login Shell File StarStarStarStar
File extension BASH_HISTORY Bash History File StarStarStarStar
File extension BASH_PROFILE Bash Interactive Login Shell File StarStarStarStar
File extension BCD Windows Boot Configuration Data File StarStarStarStar
File extension BIN Router Firmware File StarStarStar
File extension BIO BIOS File StarStar
File extension BK1 Windows Indexing Service File Star
File extension BK2 Windows Indexing Service Data File Star
File extension BLF Microsoft Windows Vista and Windows 7 registry file StarStarStar
File extension BMK Help Bookmarks StarStar
File extension BOM Mac OS X Bill of Materials File StarStar
File extension BUD Binary Printer Description File StarStar
File extension C32 Syslinux COM32 Module StarStarStar
File extension CAB Windows Cabinet File StarStarStarStarStar
File extension CAT Microsoft Security Catalog file StarStarStar
File extension CDMP WCS Device Model Profile StarStar
File extension CGZ Linux Drivers Archive StarStarStar
File extension CHK Netgear Router Firmware File StarStar
File extension CHS Windows Chinese Noise-Word List File Star
File extension CHT Windows Chinese Traditional Noise-Word List File Star
File extension CNS Windows 2000 Client Connection Manager Export file StarStar
File extension CNT Help Contents File StarStarStar
File extension CONFIGPROFILE Apple Configuration Profile StarStarStar
File extension CPI Codepage Information File StarStarStar
File extension CPL Windows Control Panel Item StarStarStarStarStar
File extension CPQ Compaq OEM Disc Configuration File StarStar
File extension CPR Windows Phone Display Settings File StarStarStar
File extension CRASH Mac OS X Crash Log File StarStarStar
File extension CUR Windows Cursor StarStarStarStarStar
File extension DAT Windows Registry Hive File StarStarStar
File extension DESKLINK Desktop Shortcut StarStarStar
File extension DESKTHEMEPACK Windows 8 Desktop Theme Pack File StarStarStarStarStar
File extension DEV Windows Device Driver File StarStar
File extension DFU iOS DFU File StarStar
File extension DIAGCAB Troubleshooting Pack Cabinet File StarStarStar
File extension DIAGCFG Troubleshooting Pack Configuration File StarStar
File extension DIAGPKG Troubleshooting Pack File StarStar
File extension DIMAX DiMAX Firmware Image File Star
File extension DIT Active Directory Information Tree File StarStarStar
File extension DLL Dynamic Link Library StarStarStarStarStar
File extension DLX Renamed DLL File Star
File extension DMP Windows Memory Dump StarStarStarStarStar
File extension DRPM Delta RPM File StarStarStar
File extension DRV Device Driver StarStarStarStarStar
File extension DSS DCC Active Designer File StarStar
File extension DVD DOS Device Driver Star
File extension DYC Xerox Printer Driver Configuration File Star
File extension EBD Windows EBD System File StarStarStar
File extension EDJ Enlightenment Theme File StarStarStarStar
File extension EFI Extensible Firmware Interface File StarStarStar
File extension EFIRES EFI Image File StarStarStar
File extension EMERALD Emerald Theme StarStar
File extension ETL Microsoft Event Trace Log File StarStarStar
File extension EVT Windows Event Viewer Log File StarStarStar
File extension EVTX Windows 7 Event Log File StarStarStar
File extension FFA Find Fast Status File StarStar
File extension FFL Find Fast Document List StarStar
File extension FFO Find Fast Document Properties Cache StarStar
File extension FFX Microsoft Find Fast Index StarStar
File extension FID Microsoft Catalog Indexing Service File Star
File extension FLG Puppy Linux Partition Flag File Star
File extension FOTA Firmware Over-the-Air File StarStarStar
File extension FPBF Mac OS X Burn Folder StarStarStarStar
File extension FTG Full Text Group StarStar
File extension FX ReadyBoot Trace File StarStar
File extension GMMP WCS Gamut Map Model Profile StarStar
File extension GRL Windows Update Status File Star
File extension GROUP Windows Contacts Group File StarStarStarStar
File extension GRP Windows Program Manager Group StarStar
File extension H1S Windows Assistance Platform Help File StarStarStar
File extension HDMP Windows Heap Dump StarStarStar
File extension HELP Mac OS X Help Book StarStarStar
File extension HHC HTML Help Table of Contents StarStarStar
File extension HHK HTML Help Index StarStarStar
File extension HIV Windows Registry Hive File StarStarStar
File extension HLP Windows Help File StarStarStarStar
File extension HPJ Help Project File StarStarStar
File extension HSH Windows Catalog Search Index File Star
File extension HTT Hypertext Template File StarStarStar
File extension ICL Windows Icon Library File StarStarStar
File extension ICNS Mac OS X Icon Resource File StarStarStarStarStar
File extension ICO Icon File StarStarStarStarStar
File extension ICONPACKAGE IconPackager Theme File StarStarStar
File extension IFW INTUS Firmware File StarStar
File extension IME Windows Input Method Editor File StarStar
File extension IMG3 iPhone IMG3 File StarStarStar
File extension INF_LOC Windows Driver Information Cache File StarStarStar
File extension INS Internet Naming Service File StarStar
File extension INTERNETCONNECT Apple Internet Connect Document StarStar
File extension ION File Description File StarStarStar
File extension IOPLIST Mac OS X IOPLIST File Star
File extension IPOD Rockbox Firmware File StarStar
File extension IPTHEME IconPackager Raw Theme File StarStar
File extension ITEMDATA-MS Windows 8 Start Screen Item Data File StarStarStar
File extension ITS Internet Document Set Star
File extension IUS InfoTMIC Firmware Update File StarStarStar
File extension JOB Windows Task Scheduler Job File StarStarStar
File extension JPN Windows Japanese Noise-Word List File Star
File extension KBD Keyboard Layout Script StarStarStar
File extension KEXT Mac OS X Kernel Extension StarStarStar
File extension KEY Security Key StarStarStar
File extension KO Linux Kernel Module File StarStarStar
File extension KOR Windows Korean Noise-Words List File Star
File extension LFS Samsung Phone params.lfs File Star
File extension LIBRARY-MS Windows Library Description File StarStarStar
File extension LNK Windows File Shortcut StarStarStarStarStar
File extension LOCKFILE Mac OS X PLIST Lock File StarStarStar
File extension LOG1 Windows Registry Hive Log File StarStarStar
File extension LOG2 Windows Registry Hive Log 2 File StarStarStar
File extension LPD Lookout Protocol Driver File StarStarStar
File extension LST GRUB Boot List File StarStarStar
File extension MANIFEST Windows Application Manifest File StarStarStar
File extension MAPIMAIL Send To Mail Recipient StarStarStar
File extension MBR Master Boot Record File StarStar
File extension MDMP Windows Minidump StarStarStar
File extension ME Puppy Linux Partition Flag File Star
File extension MEM Parallels Desktop Memory Dump File StarStar
File extension METADATA_NEVER_INDEX Spotlight Never Index File StarStar
File extension MI4 Audio Player Firmware File StarStarStar
File extension MLC Microsoft Language Interface Pack StarStarStar
File extension MOBILECONFIG Apple Mobile Configuration File StarStarStar
File extension MOD GRUB Module StarStar
File extension MSC Microsoft Management Console Snap-in Control File StarStarStar
File extension MSP Windows Installer Patch StarStarStarStar
File extension MSSTYLE Windows XP Unsigned Style StarStar
File extension MSSTYLES Windows XP Style StarStarStar
File extension MTZ MIUI Theme StarStarStar
File extension MUI Multilingual User Interface File StarStarStar
File extension MUI_CCCD5AE0 Hid User Library StarStar
File extension MUM Windows Vista Update Package StarStarStar
File extension MYDOCS Send To My Documents StarStarStar
File extension NBH ROM Update Utility Image File StarStar
File extension NETWORKCONNECT Apple Network Connect Document StarStar
File extension NFO System Information File StarStarStar
File extension NLS Microsoft National Language Support File StarStarStar
File extension NT Windows NT Startup File StarStarStar
File extension NTFS NTFS Partition File StarStar
File extension OSAX FindFile OSAX mac file type StarStar
File extension PANIC Kernel Panic File StarStar
File extension PAT DiskStation Manager Installation File StarStarStar
File extension PDR Windows Port Driver StarStarStar
File extension PF Windows prefetch file StarStarStar
File extension PFX PKCS #12 Certificate File StarStarStarStar
File extension PID Creative Driver File Star
File extension PIT Samsung Phone Firmware File Star
File extension PK2 Silkroad Online Game Data File StarStarStar
File extension PNF Precompiled INF File StarStarStar
File extension PPD PostScript Printer Description File StarStarStar
File extension PPM Post Programmable Memory File StarStar
File extension PREFPANE Mac OS X System Preference Pane StarStarStar
File extension PRF Windows System File StarStarStarStar
File extension PRINTEREXPORT Windows Printer Migration File StarStar
File extension PROFILE Bash Shell Profile StarStarStarStar
File extension PROVISIONPROFILE Apple Provision Profile StarStarStar
File extension PRT Printer Driver File Star
File extension PS1 Microsoft Indexing Service Data File Star
File extension PS2 Microsoft Search Catalog Index File Star
File extension PWL Windows Password List StarStarStar
File extension QKY Quirky Kernel Star
File extension QVM Q Virtual Machine Star
File extension RC1 Samsung Mobile Device Firmware File StarStar
File extension RC2 Samsung Mobile Device Firmware File StarStar
File extension RCO PlayStation Portable Resource File StarStar
File extension REG Registry File StarStarStarStar
File extension REGTRANS-MS Registry Transaction Log File StarStarStar
File extension RFW Rockchip Firmware File StarStarStar
File extension RMT Router Firmware File StarStarStar
File extension RRA Windows Installer temporary file file StarStar
File extension RS Windows Rating System File Star
File extension RTP Microsoft software update file StarStar
File extension SAVEDSEARCH Spotlight Saved Search StarStarStar
File extension SAVER Mac OS X Screen Saver StarStarStar
File extension SB Slax Bundle StarStar
File extension SBF Android System File StarStarStar
File extension SBN Cisco IP Phone Firmware File StarStarStar
File extension SCAP EFI Firmware File StarStar
File extension SCF Windows Explorer Command StarStarStarStar
File extension SCHEMAS GConf Schema Definition File StarStar
File extension SCR Windows Screensaver StarStarStarStar
File extension SDT Siemens Desktop Theme File StarStar
File extension SEARCHCONNECTOR-MS Windows Search Connector File StarStarStar
File extension SFCACHE ReadyBoost Cache File StarStar
File extension SHD Windows Print Job Shadow File StarStarStar
File extension SHSH iPhone/iPod Touch SHSH Blob File StarStarStar
File extension SO0 Unix Shared Library File StarStar
File extension SP3 Microsoft Windows XP with Service Pack 3 installation file StarStar
File extension SPL Windows Print Spool File StarStarStar
File extension SQM Service Quality Monitoring File StarStarStar
File extension STR Windows Screensaver File Star
File extension SWP Swap File StarStar
File extension SYS Windows System File StarStarStarStarStar
File extension TDZ Drobo Firmware File StarStar
File extension THA Windows Thai Noise-Words List File Star
File extension THEME Microsoft Plus! Desktop Theme StarStarStarStar
File extension TRX_DLL Windows Startup File StarStar
File extension UCE Windows UCE System File StarStar
File extension VGA VGA Display Driver StarStar
File extension VGD Generic CADD VGA Driver StarStar
File extension VXD Virtual Device Driver StarStarStar
File extension VX_ Compressed Virtual Device Driver File StarStar
File extension WDF Windows Driver Foundation File StarStarStar
File extension WDGT Dashboard Widget StarStarStarStar
File extension WEBPNP Web Point and Print File StarStarStar
File extension WER Windows Error Report StarStar
File extension WGZ S60 Web Runtime Widget Package StarStarStar
File extension WPX Printer Description File Star
File extension XP WindowBlinds temporary file Star
File extension XRM-MS Microsoft Security Certificate StarStar
File extension ZONEIDENTIFIER Windows Zone Identifier File StarStarStar