System Files
by: Administrator
# File extension The full name of the file
 
1 286 file extension Microsoft Windows Virtual Device Driver
2 2FS file extension Puppy Linux Save State File
3 32S file extension Win32s
4 386 file extension Windows Virtual Device Driver
5 3FS file extension Puppy Linux Save State File
6 500 file extension Linux
7 73U file extension TI-73 Explorer Operating System File
8 8XU file extension TI-83 Plus Operating System File
9 ADM file extension Administrative Template File
10 ADML file extension Microsoft administrative language-specific XML template file
11 ADMX file extension Group Policy Administrative Template File
12 AML file extension Microsoft Assistance Markup Language
13 ANI file extension Animated cursor
14 ANN file extension Help Annotations
15 AOS file extension ARCHOS PCtablet Firmware File
16 ASEC file extension Android Secure Application File
17 ATAHD file extension ATA Hard Drive Flag File
18 AUG file extension Red Hat Linux Shellvars
19 AUTOMATICDESTINATIONS-MS file extension Windows Jump List File
20 BASHRC file extension Bash Non-Interactive Login Shell File
21 BASH_HISTORY file extension Bash History File
22 BASH_PROFILE file extension Bash Interactive Login Shell File
23 BCD file extension Windows Boot Configuration Data File
24 BK2 file extension Windows Indexing Service Data File
25 BLF file extension Microsoft Windows Vista and Windows 7 registry file
26 BNR file extension Nintento Wii Homebrew
27 BOM file extension Mac OS X Bill of Materials File
28 BOOTEFISIGNATURE file extension Bootefisignature Mac OS X System
29 BUD file extension Binary Printer Description File
30 C32 file extension Syslinux COM32 Module
31 CAB file extension Windows Cabinet File
32 CAT file extension Microsoft Security Catalog file
33 CB file extension Microsoft Clean Boot
34 CDMP file extension WCS Device Model Profile
35 CGZ file extension Linux Drivers Archive
36 CHS file extension Windows Chinese Noise-Word List File
37 CNS file extension Windows 2000 Client Connection Manager Export file
38 CNT file extension Help Contents File
39 CONFIGPROFILE file extension Apple Configuration Profile
40 CPL file extension Windows Control Panel Item
41 CPQ file extension Compaq OEM Disc Configuration File
42 CRASH file extension Mac OS X Crash Log File
43 CUR file extension Windows Cursor
44 DAT_TUREG_OLD file extension Windows Registry
45 DESKLINK file extension Desktop Shortcut
46 DESKTHEMEPACK file extension Windows 8 Desktop Theme Pack File
47 DEV file extension Windows Device Driver File
48 DFU file extension iOS DFU File
49 DIAGCAB file extension Troubleshooting Pack Cabinet File
50 DIAGCFG file extension Troubleshooting Pack Configuration File
51 DIAGPKG file extension Troubleshooting Pack File
52 DIMAX file extension DiMAX Firmware Image File
53 DIT file extension Active Directory Information Tree File
54 DLL file extension Dynamic Link Library
55 DMP file extension Windows Memory Dump
56 DO7 file extension DOS 7
57 DOH file extension Geoworks GEOS Dependency Information
58 DRPM file extension Delta RPM File
59 DRV file extension Device Driver
60 DYC file extension Xerox Printer Driver Configuration File
61 EBD file extension Windows EBD System File
62 EDJ file extension Enlightenment Theme File
63 EFI file extension Extensible Firmware Interface File
64 EFIRES file extension EFI Image File
65 EMERALD file extension Emerald Theme
66 ETL file extension Microsoft Event Trace Log File
67 EVT file extension Windows Event Viewer Log File
68 EVTX file extension Windows 7 Event Log File
69 FFA file extension Find Fast Status File
70 FFL file extension Find Fast Document List
71 FFO file extension Find Fast Document Properties Cache
72 FOTA file extension Firmware Over-the-Air File
73 FPBF file extension Mac OS X Burn Folder
74 FSTAB file extension File System Table
75 FTG file extension Full Text Group
76 GMMP file extension WCS Gamut Map Model Profile
77 GRL file extension Windows Update Status File
78 GROUP file extension Windows Contacts Group File
79 H1K file extension Keyword Index - Microsoft Windows Assistance Platform Client Help Related
80 H1S file extension Windows Assistance Platform Help File
81 HDMP file extension Windows Heap Dump
82 HELP file extension Mac OS X Help Book
83 HHC file extension HTML Help Table of Contents
84 HHK file extension HTML Help Index
85 HIV file extension Windows Registry Hive File
86 HLP file extension Windows Help File
87 HPC file extension System Dynamic Library
88 HPJ file extension Help Project File
89 HSH file extension Windows Catalog Search Index File
90 HTT file extension Hypertext Template File
91 ICL file extension Windows Icon Library File
92 ICNS file extension Mac OS X Icon Resource File
93 ICO file extension Icon File
94 ICONPACKAGE file extension IconPackager Theme File
95 IDX_DLL file extension Microsoft Office IDX_DLL
96 IFW file extension INTUS Firmware File
97 IME file extension Windows Input Method Editor File
98 IMG3 file extension iPhone IMG3 File
99 INA file extension MS-DOS
100 INF_LOC file extension Windows Driver Information Cache File
101 INTERNETCONNECT file extension Apple Internet Connect Document
102 ION file extension File Description File
103 IOPLIST file extension Mac OS X IOPLIST File
104 IPOD file extension Rockbox Firmware File
105 IPTHEME file extension IconPackager Raw Theme File
106 ISWP file extension Apple ITunes IOS Firmware Update
107 ITEMDATA-MS file extension Windows 8 Start Screen Item Data File
108 IUS file extension InfoTMIC Firmware Update File
109 JOB file extension Windows Task Scheduler Job File
110 JOURNAL_INFO_BLOCK file extension Apple Mac OS Xsystem
111 JPN file extension Windows Japanese Noise-Word List File
112 K48 file extension Apple IOS Kernel Cache
113 KBD file extension Keyboard Layout Script
114 KEXT file extension Mac OS X Kernel Extension
115 KO file extension Linux Kernel Module File
116 KOR file extension Windows Korean Noise-Words List File
117 LFS file extension Samsung Phone params.lfs File
118 LIBRARY-MS file extension Windows Library Description File
119 LNK file extension Windows File Shortcut
120 LOCKFILE file extension Mac OS X PLIST Lock File
121 LOG1 file extension Windows Registry Hive Log File
122 LOG2 file extension Windows Registry Hive Log 2 File
123 LPD file extension Lookout Protocol Driver File
124 MANIFEST file extension Windows Application Manifest File
125 MAPIMAIL file extension Send To Mail Recipient
126 MDMP file extension Windows Minidump
127 METADATA_NEVER_INDEX file extension Spotlight Never Index File
128 MI4 file extension Audio Player Firmware File
129 MLC file extension Microsoft Language Interface Pack
130 MOBILECONFIG file extension Apple Mobile Configuration File
131 MONITORPANEL file extension Apple Mac OS X Display Panel Extension
132 MSC file extension Microsoft Management Console Snap-in Control File
133 MSP file extension Windows Installer Patch
134 MSSTYLE file extension Windows XP Unsigned Style
135 MSSTYLES file extension Windows XP Style
136 MTZ file extension MIUI Theme
137 MUI file extension Multilingual User Interface File
138 MUIMANIFEST file extension Microsoft Windows Multilingual User Interface
139 MUI_CCCD5AE0 file extension Hid User Library
140 MUM file extension Windows Vista Update Package
141 MYDOCS file extension Send To My Documents
142 N81 file extension Apple IOS Kernel Cache
143 N90 file extension Apple IOS Kernel Cache
144 NBH file extension ROM Update Utility Image File
145 NETWORKCONNECT file extension Apple Network Connect Document
146 NLS file extension Microsoft National Language Support File
147 NOS file extension JDOS System
148 NT file extension Windows NT Startup File
149 NTFS file extension NTFS Partition File
150 NU4 file extension Norton Utilities DLL Root
151 OSAX file extension FindFile OSAX mac file type
152 OV3 file extension Overlay
153 PANIC file extension Kernel Panic File
154 PDR file extension Windows Port Driver
155 PF file extension Windows prefetch file
156 PFX file extension PKCS #12 Certificate File
157 PK2 file extension Silkroad Online Game Data File
158 PNF file extension Precompiled INF File
159 PPD file extension PostScript Printer Description File
160 PREFPANE file extension Mac OS X System Preference Pane
161 PRINTEREXPORT file extension Windows Printer Migration File
162 PROFILE file extension Bash Shell Profile
163 PROVISIONPROFILE file extension Apple Provision Profile
164 PWL file extension Windows Password List
165 QKY file extension Quirky Kernel
166 QUICKTIMECOMPONENTS file extension Mac OS X System
167 RC1 file extension Samsung Mobile Device Firmware File
168 RCO file extension PlayStation Portable Resource File
169 REG file extension Registry File
170 REGTRANS-MS file extension Registry Transaction Log File
171 RFW file extension Rockchip Firmware File
172 RISCOS file extension Acorn RISC OS
173 RMT file extension Router Firmware File
174 RRA file extension Windows Installer temporary file file
175 RSQ file extension IBM 4690 Operating System​
176 RTP file extension Microsoft software update file
177 RWM file extension Windows Imaging Resource Only
178 SAVEDSEARCH file extension Spotlight Saved Search
179 SAVER file extension Mac OS X Screen Saver
180 SBF file extension Android System File
181 SCAP file extension EFI Firmware File
182 SCF file extension Windows Explorer Command
183 SCHEMAS file extension GConf Schema Definition File
184 SCR file extension Windows Screensaver
185 SEARCHCONNECTOR-MS file extension Windows Search Connector File
186 SFCACHE file extension ReadyBoost Cache File
187 SHD file extension Windows Print Job Shadow File
188 SHSH file extension iPhone/iPod Touch SHSH Blob File
189 SO0 file extension Unix Shared Library File
190 SP3 file extension Microsoft Windows XP with Service Pack 3 installation file
191 SPL file extension Windows Print Spool File
192 SPREPORTER file extension Mac OS X System Profiler Reporter
193 SQM file extension Service Quality Monitoring File
194 SYS file extension Windows System File
195 TDZ file extension Drobo Firmware File
196 THA file extension Windows Thai Noise-Words List File
197 THEME file extension Microsoft Plus! Desktop Theme
198 TNR file extension GPS Pathfinder ProXR/XRS Firmware
199 TRX_DLL file extension Windows Startup File
200 UAQ file extension Microsoft Windows Action Queue
201 UCE file extension Windows UCE System File
202 VCN file extension NCDrive Vacon NX System Software
203 VGA file extension VGA Display Driver
204 VGD file extension Generic CADD VGA Driver
205 VTD file extension Microsoft Windows Custom Virtual Device Driver
206 VXD file extension Virtual Device Driver
207 VX_ file extension Compressed Virtual Device Driver File
208 WDGT file extension Dashboard Widget
209 WEBPNP file extension Web Point and Print File
210 WER file extension Windows Error Report
211 WGZ file extension S60 Web Runtime Widget Package
212 WRS file extension Corel WordPerfect Windows Printer Driver
213 WSS file extension Microsoft Windows Sound System
214 XP file extension WindowBlinds temporary file
215 XRM-MS file extension Microsoft Security Certificate
216 ZEX file extension ZOOM MRS-802 System
217 ZONEIDENTIFIER file extension Windows Zone Identifier File
218 _DL file extension Dynamic Link Library DLL File Form