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