System Files

#File extensionThe full name of the file
 
1 $03 File Extension MS-DOS Pipe
2 286 File Extension Microsoft Windows Virtual Device Driver
3 2FS File Extension Puppy Linux Save State Format
4 2GR File Extension Windows VGA Graphic Drivers
5 32S File Extension Win32s
6 386 File Extension Windows Virtual Device Driver
7 3FS File Extension Puppy Linux Save State Format
8 3~6 File Extension Windows 3.xx System
9 500 File Extension Linux
10 73U File Extension TI-73 Explorer Operating System Format
11 8XU File Extension TI-83 Plus Operating System Format
12 AAD File Extension FreeBSD
13 ACCESS File Extension Java Access Control
14 ACCT File Extension IBM AIX System
15 ADM File Extension Administrative Template Format
16 ADML File Extension Microsoft Administrative Language-specific XML Template Format
17 ADMX File Extension Group Policy Administrative Template Format
18 AIX File Extension IBM AIX
19 AML File Extension Microsoft Assistance Markup Language
20 ANI File Extension Animated Cursor
21 ANN File Extension Help Annotations
22 AOS File Extension ARCHOS PCtablet Firmware Format
23 APDISK File Extension Apple Mac OS X Related
24 APPLEDOUBLE File Extension Apple AppleDouble Resource
25 APPLE_PARTITION_MAP File Extension Apple Partition Scheme
26 AQL File Extension AOL DLL
27 ASEC File Extension Android Secure Application Format
28 ATAHD File Extension ATA Hard Drive Flag Format
29 AUG File Extension Red Hat Linux Shellvars
30 AUTOMATICDESTINATIONS-MS File Extension Windows Jump List Format
31 BASHRC File Extension Bash Non-Interactive Login Shell Format
32 BASH_HISTORY File Extension Bash History Format
33 BASH_PROFILE File Extension Bash Interactive Login Shell Format
34 BBFW File Extension ITunes Firmware
35 BCD File Extension Windows Boot Configuration Data Format
36 BK2 File Extension Windows Indexing Service Data Format
37 BLF File Extension Microsoft Windows Vista And Windows 7 Registry Format
38 BNR File Extension Nintento Wii Homebrew
39 BOM File Extension Mac OS X Bill Of Materials Format
40 BOOTEFISIGNATURE File Extension Bootefisignature Mac OS X System
41 BRIDGESUPPORT File Extension Bridgesupport Mac OS X Format Extension
42 BSDIFF File Extension Cygwin
43 BUD File Extension Binary Printer Description Format
44 B~K File Extension Microsoft Windows 3.x Data Format
45 C32 File Extension Syslinux COM32 Module
46 CAB File Extension Windows Cabinet Format
47 CAT File Extension Microsoft Security Catalog Format
48 CB File Extension Microsoft Clean Boot
49 CDMP File Extension WCS Device Model Profile
50 CGK File Extension BlueSoleil
51 CGZ File Extension Linux Drivers Archive
52 CHS File Extension Windows Chinese Noise-Word List Format
53 CNS File Extension Windows 2000 Client Connection Manager Export Format
54 CNT File Extension Help Contents Format
55 COMPONENTS File Extension Mac OS X System
56 CONFIGPROFILE File Extension Apple Configuration Profile
57 CPL File Extension Windows Control Panel Item
58 CPQ File Extension Compaq OEM Disc Configuration Format
59 CRASH File Extension Mac OS X Crash Log Format
60 CRMLOG File Extension Microsoft Windows CRM Log
61 CTFSYS File Extension OS X Mach Kernel System
62 CUR File Extension Windows Cursor
63 DAT_TUREG_OLD File Extension Windows Registry
64 DDZ File Extension Adaptec Unix Driver
65 DESKLINK File Extension Desktop Shortcut
66 DESKTHEMEPACK File Extension Windows 8 Desktop Theme Pack Format
67 DEV File Extension Windows Device Driver Format
68 DEVICEMANIFEST-MS File Extension Microsoft Windows Device Metadata
69 DFU File Extension IOS DFU Format
70 DIAGCAB File Extension Troubleshooting Pack Cabinet Format
71 DIAGCFG File Extension Troubleshooting Pack Configuration Format
72 DIAGPKG File Extension Troubleshooting Pack Format
73 DIMAX File Extension DiMAX Firmware Image Format
74 DIT File Extension Active Directory Information Tree Format
75 DLL File Extension Dynamic Link Library
76 DMP File Extension Windows Memory Dump
77 DO7 File Extension DOS 7
78 DOH File Extension Geoworks GEOS Dependency Information
79 DOS File Extension WIN95/ DOS 7 System
80 DRPM File Extension Delta RPM Format
81 DRV File Extension Device Driver
82 DYC File Extension Xerox Printer Driver Configuration Format
83 EBD File Extension Windows EBD System Format
84 EDJ File Extension Enlightenment Theme Format
85 EFI File Extension Extensible Firmware Interface Format
86 EFIRES File Extension EFI Image Format
87 EMERALD File Extension Emerald Theme
88 EQUIV File Extension IBM AIX System Format.
89 ESN File Extension Windows XP System32
90 ETL File Extension Microsoft Event Trace Log Format
91 EVT File Extension Windows Event Viewer Log Format
92 EVTX File Extension Windows 7 Event Log Format
93 EXT2 File Extension Linux Second Extended System
94 FFA File Extension Find Fast Status Format
95 FFL File Extension Find Fast Document List
96 FFO File Extension Find Fast Document Properties Cache
97 FOLDER File Extension Microsoft Windows Explorer Folder
98 FOTA File Extension Firmware Over-the-Air Format
99 FPBF File Extension Mac OS X Burn Folder
100 FSEVENTSD File Extension MAC OS X
101 FSTAB File Extension File System Table
102 FTG File Extension Full Text Group
103 FWL File Extension FileWrangler EXE Library
104 GMMP File Extension WCS Gamut Map Model Profile
105 GRL File Extension Windows Update Status Format
106 GROUP File Extension Windows Contacts Group Format
107 H1C File Extension Windows Vista Format Related To Assistance Platform (AP) Help
108 H1F File Extension Microsoft Windows Assistance Platform Client Help
109 H1K File Extension Keyword Index - Microsoft Windows Assistance Platform Client Help Related
110 H1S File Extension Windows Assistance Platform Help Format
111 H1T File Extension Microsoft Windows Assistance Platform Client Help Related
112 H1V File Extension Task Metadata - Microsoft Windows Assistance Platform Client Help Related
113 HDMP File Extension Windows Heap Dump
114 HELP File Extension Mac OS X Help Book
115 HHC File Extension HTML Help Table Of Contents
116 HHK File Extension HTML Help Index
117 HIV File Extension Windows Registry Hive Format
118 HLP File Extension Windows Help Format
119 HPC File Extension System Dynamic Library
120 HPFS File Extension OS/2 High Performance Format System
121 HPJ File Extension Help Project Format
122 HSH File Extension Windows Catalog Search Index Format
123 HTT File Extension Hypertext Template Format
124 HTW File Extension Windows
125 HV File Extension Microsoft Windows Mobile Hive
126 HX1 File Extension Microsoft Windows Data Format
127 HXI File Extension Microsoft Help Compiled Storage
128 IA64 File Extension HP-UX
129 ICL File Extension Windows Icon Library Format
130 ICNS File Extension Mac OS X Icon Resource Format
131 ICO File Extension Icon Format
132 ICONPACKAGE File Extension IconPackager Theme Format
133 IDENTIFIER File Extension Microsoft Windows Zone Identifier
134 IDX_DLL File Extension Microsoft Office IDX_DLL
135 IFW File Extension INTUS Firmware Format
136 IME File Extension Windows Input Method Editor Format
137 IMG3 File Extension IPhone IMG3 Format
138 INA File Extension MS-DOS
139 INF_LOC File Extension Windows Driver Information Cache Format
140 INSTALL_BACKUP File Extension AVG Shell Extension Module
141 INTERNETCONNECT File Extension Apple Internet Connect Document
142 ION File Extension File Description Format
143 IOPLIST File Extension Mac OS X IOPLIST Format
144 IPOD File Extension Rockbox Firmware Format
145 IPTHEME File Extension IconPackager Raw Theme Format
146 IRIX6 File Extension Irix 6
147 ISWP File Extension Apple ITunes IOS Firmware Update
148 ITEMDATA-MS File Extension Windows 8 Start Screen Item Data Format
149 IUS File Extension InfoTMIC Firmware Update Format
150 JFS File Extension Linux/Unix Journaling System
151 JLB File Extension PAC Mate BX Keyboard Driver
152 JOB File Extension Windows Task Scheduler Job Format
153 JOURNAL_INFO_BLOCK File Extension Apple Mac OS Xsystem
154 JPN File Extension Windows Japanese Noise-Word List Format
155 K48 File Extension Apple IOS Kernel Cache
156 KBD File Extension Keyboard Layout Script
157 KEXT File Extension Mac OS X Kernel Extension
158 KO File Extension Linux Kernel Module Format
159 KOR File Extension Windows Korean Noise-Words List Format
160 LE File Extension Le Mac OS X
161 LFS File Extension Samsung Phone Params.lfs Format
162 LGS File Extension Microsoft Windows Application Log
163 LIBRARY-MS File Extension Windows Library Description Format
164 LLS File Extension Windows System
165 LN File Extension UNIX Lint
166 LNK File Extension Windows Format Shortcut
167 LOCALIZED File Extension MAC OS X
168 LOCKFILE File Extension Mac OS X PLIST Lock Format
169 LOG1 File Extension Windows Registry Hive Log Format
170 LOG2 File Extension Windows Registry Hive Log 2 Format
171 LPD File Extension Lookout Protocol Driver Format
172 LS_ File Extension Unix Ls Directory
173 MANIFEST File Extension Windows Application Manifest Format
174 MAPIMAIL File Extension Send To Mail Recipient
175 MDIMPORTER File Extension Spotlight Importer Setting
176 MDMP File Extension Windows Minidump
177 METADATA_NEVER_INDEX File Extension Spotlight Never Index Format
178 MI4 File Extension Audio Player Firmware Format
179 MKEXT File Extension Mac OS X Mach Kernel Extension Memory Cache
180 MLC File Extension Microsoft Language Interface Pack
181 MOBILECONFIG File Extension Apple Mobile Configuration Format
182 MOJITO File Extension Limewire Kademlia
183 MONITORPANEL File Extension Apple Mac OS X Display Panel Extension
184 MPS_ File Extension MPW Shell
185 MSC File Extension Microsoft Management Console Snap-in Control Format
186 MSDM File Extension Microsoft Windows
187 MSP File Extension Windows Installer Patch
188 MSSTYLE File Extension Windows XP Unsigned Style
189 MSSTYLES File Extension Windows XP Style
190 MTZ File Extension MIUI Theme
191 MUI File Extension Multilingual User Interface Format
192 MUIMANIFEST File Extension Microsoft Windows Multilingual User Interface
193 MUI_CCCD5AE0 File Extension Hid User Library
194 MUM File Extension Windows Vista Update Package
195 MYDOCS File Extension Send To My Documents
196 N81 File Extension Apple IOS Kernel Cache
197 N90 File Extension Apple IOS Kernel Cache
198 N90AP File Extension IPhone Jailbreak Firmware
199 NBH File Extension ROM Update Utility Image Format
200 NETWORKCONNECT File Extension Apple Network Connect Document
201 NLS File Extension Microsoft National Language Support Format
202 NOS File Extension JDOS System
203 NOT_TERMINATED File Extension Mac OS X Audit Log
204 NOVS File Extension Novell NetWare Control Center
205 NT File Extension Windows NT Startup Format
206 NTFS File Extension NTFS Partition Format
207 NU4 File Extension Norton Utilities DLL Root
208 OS2 File Extension Os2 System
209 OSAX File Extension FindFile OSAX Mac Format Type
210 OV1 File Extension Overlay
211 OV3 File Extension Overlay
212 OV4 File Extension Overlay
213 OV5 File Extension Overlay
214 P5X File Extension Windows System
215 PANIC File Extension Kernel Panic Format
216 PAYLOAD File Extension Microsoft Windows Mobile
217 PCI File Extension PCI Miniport
218 PDR File Extension Windows Port Driver
219 PF File Extension Windows Prefetch Format
220 PFX File Extension PKCS #12 Certificate Format
221 PK2 File Extension Silkroad Online Game Data Format
222 PNF File Extension Precompiled INF Format
223 PPD File Extension PostScript Printer Description Format
224 PR2 File Extension DBase IV Printer Driver
225 PREFPANE File Extension Mac OS X System Preference Pane
226 PRINTEREXPORT File Extension Windows Printer Migration Format
227 PROFILE File Extension Bash Shell Profile
228 PROVISIONPROFILE File Extension Apple Provision Profile
229 PWL File Extension Windows Password List
230 PXE File Extension Linux, Unix Network Bootable
231 QFILTER File Extension Mac OS X ColorSync Filter
232 QKY File Extension Quirky Kernel
233 QTS File Extension QuickTime System
234 QUICKTIMECOMPONENTS File Extension Mac OS X System
235 RC1 File Extension Samsung Mobile Device Firmware Format
236 RCO File Extension PlayStation Portable Resource Format
237 RDZ File Extension Mandrake Linux Install
238 REG File Extension Registry Format
239 REGTRANS-MS File Extension Registry Transaction Log Format
240 RFW File Extension Rockchip Firmware Format
241 RGU File Extension Microsoft Windows Mobile Registry Entry
242 RIO File Extension IBM AIX System
243 RISCOS File Extension Acorn RISC OS
244 RMT File Extension Router Firmware Format
245 RRA File Extension Windows Installer Temporary Format Format
246 RSQ File Extension IBM 4690 Operating System​
247 RTP File Extension Microsoft Software Update Format
248 RWM File Extension Windows Imaging Resource Only
249 RX File Extension MS-DOS 7
250 SAVEDSEARCH File Extension Spotlight Saved Search
251 SAVER File Extension Mac OS X Screen Saver
252 SBF File Extension Android System Format
253 SCAP File Extension EFI Firmware Format
254 SCF File Extension Windows Explorer Command
255 SCHEMAS File Extension GConf Schema Definition Format
256 SCR File Extension Windows Screensaver
257 SEARCHCONNECTOR-MS File Extension Windows Search Connector Format
258 SEARCHINDEXCACHE File Extension Mac OS X Cache
259 SERVICE File Extension Mac OS X Service Application
260 SF0 File Extension Windows Sytem Check
261 SFCACHE File Extension ReadyBoost Cache Format
262 SHA File Extension Unix SHAR Archive
263 SHD File Extension Windows Print Job Shadow Format
264 SHSH File Extension IPhone/iPod Touch SHSH Blob Format
265 SO0 File Extension Unix Shared Library Format
266 SP3 File Extension Microsoft Windows XP With Service Pack 3 Installation Format
267 SPL File Extension Windows Print Spool Format
268 SPREPORTER File Extension Mac OS X System Profiler Reporter
269 SQM File Extension Service Quality Monitoring Format
270 SUPPORTED File Extension MAC OS X
271 SYS File Extension Windows System Format
272 TDZ File Extension Drobo Firmware Format
273 THA File Extension Windows Thai Noise-Words List Format
274 THEME File Extension Microsoft Plus! Desktop Theme
275 TNR File Extension GPS Pathfinder ProXR/XRS Firmware
276 TRX_DLL File Extension Windows Startup Format
277 UAQ File Extension Microsoft Windows Action Queue
278 UCE File Extension Windows UCE System Format
279 VCN File Extension NCDrive Vacon NX System Software
280 VET File Extension VET Antivirus System
281 VGA File Extension VGA Display Driver
282 VGD File Extension Generic CADD VGA Driver
283 VRS File Extension Corel WordPerfect Video Resource Device Driver
284 VTD File Extension Microsoft Windows Custom Virtual Device Driver
285 VXD File Extension Virtual Device Driver
286 VX_ File Extension Compressed Virtual Device Driver Format
287 WDGT File Extension Dashboard Widget
288 WEBPNP File Extension Web Point And Print Format
289 WER File Extension Windows Error Report
290 WGZ File Extension S60 Web Runtime Widget Package
291 WRS File Extension Corel WordPerfect Windows Printer Driver
292 WSS File Extension Microsoft Windows Sound System
293 XMO File Extension Adobe Authorware Movie Driver
294 XMS File Extension Microsoft EXtended Memory Specification
295 XP File Extension WindowBlinds Temporary Format
296 XRM-MS File Extension Microsoft Security Certificate
297 ZEX File Extension ZOOM MRS-802 System
298 ZONEIDENTIFIER File Extension Windows Zone Identifier Format
299 _DL File Extension Dynamic Link Library DLL Format Form
300 _VTI_BIN File Extension SharePoint
Top File Extensions
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File Extension of the day
plt icon

PLT

AutoCAD Plotter Document

Files with PLT extension are used by AutoCAD. PLT is a vector-based plotter file that can store geometrical shapes, images, mathematical calculati...