System Files Extensions

0

Shared Library Link File

.2fs

Puppy Linux Save State File

0

Indexing Service Data File

.73u

TI-73 Explorer Operating System File

.3fs

Puppy Linux Save State File

0.208

ASUS Notebook BIOS 208 Update File

.8xu

TI-83 and TI-84 Plus Operating System File

.8cu

TI-84 Plus C Operating System File

0.386

Windows Virtual Device Driver

.ani

Windows Animated Cursor

.admx

Group Policy Administrative Template File

.asec

Android Secure Application File

.adv

Audio Driver File

.aml

ACPI Machine Language File

.adm

Administrative Template File

.ann

Help Annotations

.bin

Router Firmware File

.bash_profile

Bash Interactive Login Shell File

.bash_history

Bash History File

.bashrc

Bash Non-Interactive Login Shell File

.bcd

Windows Boot Configuration Data File

.blf

CLFS Base Log File

.bmk

Help Bookmarks

.bio

BIOS File

.bud

Binary Printer Description File

.bk1

Windows Indexing Service File

.bom

Mac OS X Bill of Materials File

.bk2

Windows Indexing Service Data File

.cur

Windows Cursor

.cpl

Windows Control Panel Item

.cab

Windows Cabinet File

.cpr

Windows Phone Display Settings File

.cpi

Codepage Information File

.configprofile

Apple Configuration Profile

.c32

Syslinux COM32 Module

.cat

Windows Catalog File

.cap

ASUS BIOS Update File

.chk

Netgear Router Firmware File

.cnt

Help Contents File

.clb

COM+ Catalog File

.cgz

Linux Drivers Archive

.crash

Mac OS X Crash Log File

.dat

Windows Registry Hive File

.dmp

Windows Memory Dump

.deskthemepack

Windows 8 Desktop Theme Pack File

.dll

Dynamic Link Library

.drv

Device Driver

.dlx

Renamed DLL File

.dss

DCC Active Designer File

.diagcab

Troubleshooting Pack Cabinet File

.drpm

Delta RPM File

.dit

Active Directory Information Tree File

.dvd

DOS Device Driver

.desklink

Desktop Shortcut

.dfu

iOS DFU File

.dev

Windows Device Driver File

.diagpkg

Troubleshooting Pack File

.diagcfg

Troubleshooting Pack Configuration File

.edj

Enlightenment Theme File

.elf

Executable and Linkable Format File

.etl

Microsoft Event Trace Log File

.ebd

Windows EBD System File

.evt

Windows Event Viewer Log File

.efires

EFI Image File

.efi

Extensible Firmware Interface File

.evtx

Windows 7 Event Log File

.escopy

ES Explorer Temporary File

.emerald

Emerald Theme

.fpbf

Mac OS X Burn Folder

.fx

ReadyBoot Trace File

.fota

Firmware Over-the-Air File

.ffx

Microsoft Find Fast Index

.fl1

Lenovo BIOS Update File

.fid

Microsoft Catalog Indexing Service File

.ftg

Full Text Group

.fts

Full Text Search

.ffo

Find Fast Document Properties Cache

.ffl

Find Fast Document List

.ffa

Find Fast Status File

.flg

Puppy Linux Partition Flag File

.group

Windows Contacts Group File

.grp

Windows Program Manager Group

.gmmp

WCS Gamut Map Model Profile

.grl

Windows Update Status File

.hlp

Windows Help File

.help

Mac OS X Help Book

.h1s

Windows Assistance Platform Help File

.hiv

Windows Registry Hive File

.htt

Hypertext Template File

.hdmp

Windows Heap Dump

.hhk

HTML Help Index

.hhc

HTML Help Table of Contents

.hpj

Help Project File

.hcd

Samsung Android Firmware File

.hsh

Windows Catalog Search Index File

.ico

Icon File

.icns

Mac OS X Icon Resource File

.ins

Internet Naming Service File

.idx

Index File

.iconpackage

IconPackager Theme File

.inf_loc

Windows Driver Information Cache File

.idi

EVA Controller Event Log

.itemdata-ms

Windows 8 Start Screen Item Data File

.img3

iPhone IMG3 File

.ius

InfoTMIC Firmware Update File

.ion

File Description File

.icl

Windows Icon Library File

.im4p

IMG4 Payload File

.ime

Windows Input Method Editor File

.internetconnect

Apple Internet Connect Document

.ifw

INTUS Firmware File

.iptheme

IconPackager Raw Theme File

.ipod

Rockbox Firmware File

.its

Internet Document Set

.ioplist

Mac OS X IOPLIST File

.job

Windows Task Scheduler Job File

.jpn

Windows Japanese Noise-Word List File

.key

Security Key

.kext

Mac OS X Kernel Extension

.ko

Linux Kernel Module File

.kbd

Keyboard Layout Script

.ks

Kickstart File

.kor

Windows Korean Noise-Words List File

.lnk

Windows File Shortcut

.lst

GRUB Boot List File

.log1

Windows Registry Hive Log File

.log2

Windows Registry Hive Log 2 File

.lockfile

Mac OS X PLIST Lock File

.library-ms

Windows Library Description File

.lpd

Lookout Protocol Driver File

.lpd

LPD Daemon Print Permissions File

.lfs

Samsung Phone params.lfs File

.mod

GRUB Module

.msp

Windows Installer Patch

.mlc

Microsoft Language Interface Pack

.mi4

Audio Player Firmware File

.mobileconfig

Apple Mobile Configuration File

.mtz

MIUI Theme

.mum

Windows Vista Update Package

.mbr

Master Boot Record File

.msstyles

Windows XP Style

.mapimail

Send To Mail Recipient

.mdmp

Windows Minidump

.manifest

Windows Application Manifest File

.mui

Multilingual User Interface File

.msc

Microsoft Management Console Snap-in Control File

.mem

Parallels Desktop Memory Dump File

.mydocs

Send To My Documents

.nb0

Device Boot Loader Image

.nt

Windows NT Startup File

.nls

Microsoft National Language Support File

.nfo

System Information File

.nbh

ROM Update Utility Image File

.networkconnect

Apple Network Connect Document

.ntfs

NTFS Partition File

.odex

Optimized Dalvik Executable

.prf

Windows System File

.profile

Bash Shell Profile

.prop

Android Build Properties File

.ps1

Microsoft Indexing Service Data File

.prt

Printer Driver File

.pfx

PKCS #12 Certificate File

.ppm

Post Programmable Memory File

.pck

System Center Configuration Manager Package File

.pat

DiskStation Manager Installation File

.provisionprofile

Apple Provision Profile

.pnf

Precompiled INF File

.pdr

Windows Port Driver

.prefpane

Mac OS X System Preference Pane

.pol

Windows Policy File

.pwl

Windows Password List

.pk2

Silkroad Online Game Data File

.ppd

PostScript Printer Description File

.qvm

Q Virtual Machine

.qky

Quirky Kernel

.reg

Registry File

.regtrans-ms

Registry Transaction Log File

.rmt

Router Firmware File

.rfw

Rockchip Firmware File

.rc2

Samsung Mobile Device Firmware File

.rs

Windows Rating System File

.rco

PlayStation Portable Resource File

.rc1

Samsung Mobile Device Firmware File

.ruf

Samsung DVD and Blu-ray Player Firmware File

.sys

Windows System File

.sys

Motorola Driver File

.sdb

Custom Application Compatibility Database

.sbn

Cisco IP Phone Firmware File

.scf

Windows Explorer Command

.swp

Swap File

.scr

Windows Screensaver

.spl

Windows Print Spool File

.shd

Windows Print Job Shadow File

.sb

Slax Bundle

.sbf

Android System File

.shsh

iPhone/iPod Touch SHSH Blob File

.searchconnector-ms

Windows Search Connector File

.sqm

Service Quality Monitoring File

.saver

Mac OS X Screen Saver

.str

Windows Screensaver File

.sdt

Siemens Desktop Theme File

.savedsearch

Spotlight Saved Search

.theme

Microsoft Plus! Desktop Theme

.trx_dll

Windows Startup File

.tdz

Drobo Firmware File

.tha

Windows Thai Noise-Words List File

.uce

Windows UCE System File

.vxd

Virtual Device Driver

.vgd

Generic CADD VGA Driver

.vga

VGA Display Driver

.vx_

Compressed Virtual Device Driver File

.wdgt

Dashboard Widget

.wdf

Windows Driver Foundation File

.wph

Phoenix BIOS File

.webpnp

Web Point and Print File

.wgz

S60 Web Runtime Widget Package

.wpx

Printer Description File

.wer

Windows Error Report

.xfb

Xserve RAID Firmware Binary File

.xrm-ms

Microsoft Security Certificate

.zone.identifier

Windows Zone Identifier File