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