[*.exe‖ executable file; open directly]
[*.rar‖ a compressed file; open with WinRAR]
[*.zip‖ a compressed file; open with WinRAR, or WinXP can also be xls‖ spreadsheet; open with Office Excel]
[*.wps‖ WPS document; open with Kingsoft WPS]
[*.txt‖ text document; open with Notepad by default]
[*.lrc‖ dynamic lyrics; can be opened with Notepad]
[*.rm, *.rmvb‖ HD video; you can use RealOnePlayer to open it]
[*.mp3, *.wma, *.wav" some music]
[*.jpg, *.bmp, *.gif" some pictures, of which gif can be dynamic]
[*.wfs" Flash file; you can open it with IE or FlashPlayer to open it]
[*.wfs" Flash file; you can use IE to open it or FlashPlayer to open it]
[*.lrc" dynamic lyrics; you can use Notepad to open it. FlashPlayer can be used to open it]
[*.torrent" BT file; it can be opened by BitComet]
A
ACE: Ace Compression File Format
ACT: Microsoft office assistant file
AIF, AIFF: Audio Interchange File, Silicon Graphic, AIFF: Audio Interchange File, AIFF: Audio Interchange File, AIFF: Audio Interchange File, AIFF: Audio Interchange File, AIFF: Audio Interchange File, AIFF: Audio Interchange File, AIFF: Audio Interchange File. Interchange File, a sound format for Silicon Graphic and Macintosh applications
ANI: Animated Cursor in Windows
ARC: Compressed archive file for LH ARC
ARJ: Robert Jung ARJ compressed archive file
ASD: Auto Save file for Microsoft Word; description file for Microsoft advanced streaming
format (ASF); open Velvet Studio example file with NSREX
ASF: Microsoft Advanced Streaming Format files
ASM: Assembly language source files, Pro/E assembly files
ASP: Dynamic web page files; ProComm Plus installation and connection script files; Astound introduction files
AST: Astound multimedia files; ClarisWorks "helper" files
Axx: ARJ zip file packet numbering file, used to compress a large file into several smaller packets (xx takes a number from 01-99)
A3L: Authorware 3.x library files
<A4L: Authorware 4.x library files
A5L: Authorware 5.x library files
A3M, A4M: Authorware Macintosh unpacked files
A3W, A4W, A5W: unpacked Authorware Windows files
B
BAK: Backup file
BAS: BASIC source file
BAT: Batch file
BIN: Binary file
BINHex: An Apple encoding format
BMP: Windows or OS/2 bitmap file
BOOK: Adobe FrameMaker Book file
BOX: Lotus Notes mailbox file
BPL: Borlard Delph 4 Packaging Library
BSP: Quake Graphics File
BUN: CakeWalk Sound Bundle File (a MIDI program)
C
C0l: Typhoon Waveform File
CAB: Microsoft Compressed Archive File
CAD: Softdek's Drafix CAD file
CAM: Casio Camera Format
CAP: Compressed Audio File Format
CAP. p>
CAS: Comma-separated ASCII file
CCB: Visual Basic Dynamic Button Configuration File
CCH: Corel Chart File
CO: CyberChat Data File
CCT: Macromedia Director Shockwave projection
CDA: CD audio track
CDF: Microsoft Channel Definition Format file
CDI: Philip's High Density Disk Interactive Format
CDM: Visual dBASE Custom Data Module file
CDR: CorelDRAW drawing files; raw audio CD data files
CDT: CorelDRAW templates
CDX: CorelDRAW compressed drawing files; Microsoft Visual FoxPro index files
CFG: Configuration Files
CGI: Public **** Gateway Interface script files
CGM: Computer Graphics Metafiles
CH: OS/2 configuration files
CHK: File fragments saved by Windows Disk Defragmenter or Disk Scan
CHM: Compiled HTML files
CHP: Ventura Publisher Chapter files
CHR: Character sets (font files)
CHT: ChartViem files; Harvard Graphics vector files
CIF: Adaptec CD Creator CD image files
CIL: Clip Gallery download packages
CIM SimCity 2000 file
CIN: OS/2 change control file used to track changes in INI files
CLASS: Java class file
CLP: Windows Clipboard file
CLL: Crick Software Clicker file
CLS: Visual Basic class files
CMD: Windows NT, OS/2 command files; DOS CD/M command files; dBASE II program files
CPI: Microsoft MS-DOS code page information files
CPL: Control Panel extension, Corel Color Palette
CPP: C++ code file
CPR: Corel Provides Instructions file
CPT: Corel Photo-Painting Image
CST: Macromedia Director Cast file
CUR: Windows Cursor file
D
DBF: dBASE file, a format created by Ashton-Tate that can be recognized by ACT!, Lipper, FoxPro, Arago, Wordtech, Xbase, and similar databases or database-related products; available as a data file (can be opened by Excel
97); Oracle 8.1.x tablespace files
DBX: DataBearn images; Microsoft Visual FoxPro table files
DCT: Microsoft Visual FoxPro database containers
DCU: Delphi Compilation Unit files
< p>DCX: Microsoft Visual FoxPro database container; PCX-based fax images; macrosDIR: MacromediaDirector file
DLL: Dynamic Link Library
DOC: FrameMaker or FrameBuilder document; Word Star documents, Word
Perfect documents, Microsoft: Word documents; DisplayWrite documents
DOT: Microsoft Word document templates
DPL: Borland Delph 3 compression library
DRV: Driver
DRW: Micrografx Designer/Draw; Pro/E drawing files
DSF: Micrografx Designer VFX files
DSG: DOOM saved files
DSM: Dynamic Studio Music Module (MOD) files
DSP: Microsoft Developer Studio project files
DSQ: Corel QUERY files
DST: Embroidery Machine Graphics files
DSW: Microsoft Developer Studio Workspace File
DTA: World Bank's STARS data file
DTD: SGML Document Type Definition (DTD) file
DTED: Digital Terrestrial Elevation Data (a data format for graphs) file
DTF: Symantec Q&A related database Data files
DTM: DigiTrakker Module files
DUN: Microsoft Unplugged Network Export files
DV: Digital Video Files (MIME)
DWG: AutoCAD Engineering Drawing Files; older versions of AutoCAD or Generic CADD drawing Format
DXR: Macromedia Director protected (non-editable) movie file
E
EDA: Ensoniq ASR disk image
EDD: Element Definition Document (FrameMaker + SGML document)
EDE: Ensoniq EPS disk image
EDK: Ensoniq KT disk image
EDQ: Ensoniq SQ1/SQ2/Ks32 disk image
EDS: Ensoniq SQ80 disk image
EDV: Ensoniq VFX-SD disk image
EFA: Ensoniq ASR file
EFE: Ensoniq EPS file
EFK: Ensoniq KT file
EFQ: Ensoniq SQ1/SQ2/Ks32 file
EFS: Ensoniq SQ80 file
EFV : Ensoniq VFX-SD file
EMD: ABT Extension Module
EMF: Windows Enhanced Metafile
EML: Microsoft Outlook Express Mail Message (MIME RTC822) file
EXE: Executable file (program) <
F
FAV: Microsoft Outlook Navigation Bar
FAX: Fax Type Image
FCD: Virtual CD-ROM
FDF: Adobe Acrobat Forms Document File
FLA: Macromedia Flash Movie
FND: Microsoft Explorer saved search file (Find applet)
FON: System Fonts
FRT: Microsoft FoxPro report file
FRX: Visual Basic form text; Microsoft FoxPro report files
FXP: Source files compiled by Microsoft FoxPro
G
G
GDM: Ringtones, Whistles, and Soundboard Module Format
GetRight: GetRight uncompleted download file
GHO: Norton clone disk Image
GID: Windows 95 global index file (including help status)
GIF: CompuServe bitmap file
GL: Animation format
GRP: Program Management Group
H
HEX: Macintosh BinHex 2.0 file
HLP: Help file; Date CAD Windows Help file
HPP: C++ program header file
HQX: Macintosh BinHex 4.0 file
HT: HyperTerminal
HTM, HTML: Hyper Text Document
HTT: Microsoft HyperText Template
HTX: Extended HTML Template
I
ICO: Windows Icon
IDX: Microsoft FoxPro related database index file; Symantec Q&A related database index files; Microsoft Outlook
Express files
IMG: GEM image
INF: Information File
INI: Initialization File; Mwave DSP Synth's "nwsynth.ini " GMS installation; Cravis Ultrasound bank installation
INP: Oracle version 3.0 or earlier form source code
INRS: INRS Remote Communications Sound
INS: InstallShield installation script; X- Internet Signature File; Ensoniq EPS Word Cluster Device; Cell/II MAC/PC Sampling Device
INT: Intermediate Code, when a source program is syntax-checked and then compiled to produce a piece of executable code
IOF: Findit File
IQY: Microsoft Internet Query File
ISO: List of files on a CD-ROM according to the ISD 9660 standard for CD-ROM file systems
ISP: X-Internet Signature File
IST: Digital Tracking Device File
ISU: InstallShield Uninstall Script
IT: Impulse Tracking System Music Module (MOD) file
ITI: Impulse Tracking System Instrument
ITS: Impulse Tracking System Sampling, Internet Documentation Location
IV: File Format Used in Open Inventor
IVD: Over 20/20 Microdata Dimension or variable level files
IVP: More than 20/20 user subset profiles
IVT: More than 20/20 table or collection data files
IVX: More than 20/20 microdata catalog files
IW: Idlewild screensaver
IWC: Install Watch documentation
J
J62: Ricoh camera format
JAR: Java archive file (a compressed file used for applets and related files)
JAVA: Java source file
JAR: Java archive file (a compressed file used for applets and related files)
JAVA: Java source file
JFF, JFIF, JIF: JPEG file
JPE, JPEG, JPG: JPEG graphics file
JS: JavaScript source file
JSP: HTML web page that contains a reference to a Java servlet reference
K
KAR
KAR: Karaoke MIDI file (text + MIDI)
L
LAB
LAB: Visual dBASE tagged file
LBT, LBX: Microsoft FoxPro tagged file
LDB LHA: Microsoft Access Locked File
LHA: LZH Replacement File Suffix
LOG: Log File
LZH: LH ARC Compressed Archive
M
M1V: MPEG Related File (MIME "mpeg" type)
M3D: Corel Motion 3D animation files
M3U: MPEG URLs (MIME sound files)
MAM: Microsoft Access macros
MAQ: Microsoft Access query files
MAR: Microsoft Access report File
MBX: Microsoft Outlook save email format; Eudora mailbox
MCW: Microsoft Word document for Macintosh
MDB: Microsoft Access database
MDN: Microsoft Access Empty Database Template
MDW: Microsoft Access Workgroup File
MID: MIDI Music
MMM: Microsoft Multimedia Movie
MOV: QuickTime for Windows Movie
MP2: Layer 2 MPEG audio files
MP3: Layer 3 MPEG audio files
MPA: MPEG-related files, MIME "mpeg type"
MPE, MPEG, MPG: MPEG animation files
MPP: Microsoft Project File; CAD drawing file format
MPR: Microsoft FoxPro Menu (compiled)
MSI: Windows Installer Package
MSN: Microsoft Network Documentation; Descent Mission File
O
OBD: Microsoft Office Binder
OBJ: Object File
OBZ: Microsoft Office Binder Wizard
OCX: Microsoft Object Linking and Embedding Custom Control
ODS: Microsoft Outlook Express Mailbox Files
OFT: Microsoft Outlook Templates
OPX: OPL Extended DLL (Dynamic Link Library)
OSS: Microsoft Office Lookup Files
OST: Microsoft Exchange / Outlook offline files
P
PAL: compressed files
PART: Go!Zilla partially downloaded files
PAS: Pascal source code
PCS: PICS animation files
PDF: Adobe Acrobat
Exportable Document Format files (which can be displayed in a Web browser); Microsoft System Management Server package definition files; NetWare printer definition files
PHP, PHP3: HTML Web pages with PHP scripts
PHTML: HTML Web pages with PHP scripts
PHTML: HTML Web pages; HTML interpreted by Perl parsing
PM5: Pagemaker 5.0 files
PM6: Pagemaker 6.0 files
PPS: Microsoft Powerpoint Slide Shows
PT: Microsoft Powerpoint Presentation
PRF: Windows System File, Macromedia Director's Setup File
PSD: Adobe photoshop bitmap file
PSM: Protracker Studio Model Format; source data file for Epic games
PST: Microsoft Outlook personal folder file
PWL: Windows 95 password list file
Q
QIF: QuickTime associated image (MIME); Quicken import file
QT, QTM: QuickTime Movie
QTI, QTIF: QuickTime-related images
QTP: QuickTime Priority File
QTS: Mac PICT image file; QuickTime-related images
QTX: QuickTime-related images
R
RA: RealAudio sound files
RAM: RealAudio metafiles
RAR: RAR compressed archive (Eugene Roshall format)
REC: Recorder macros; RapidComm sound files
REG: Registry files
REP: Visual dBASE report file
RES: Microsoft Visual C++ resource file
RM: RealAudio video file
RMF: Rich Map Format (used by 3D game editors to save diagrams)
ROM: Cartridge-based home game Emulator files (exact copies of ROMs from Atari
2600, Colecovision, Sega, Nintendo, etc. cartridges, not interchangeable between emulators)
Rxx: RAR compressed files on multivolume archives (xx = a number between 1 and 99)
S
SAV: game save file
SB: raw signed byte (8-bit) data
SBK: Creative Labs' Soundfont 1.0 Bank file; (Soundb laster)/EMU SonndFont v1.x
Bank file
SBL: Shockwave Flash Object File
SCF: Windows Explorer Command File
SCH: Microsoft Schedule+1
SCP: Dial-up Networking Script File
SCR: Windows Screensaver; Fax Image; Script file
SFX: RAR self-extracting archive
SHTML: HTML file with server-side includes (SSI)
SPL: Shockwave Flash object; DigiTrakker sampling
SQL: Informix SQL query; often used by database products File extension for SQL queries (script, text, binary)
STM: Short suffixed form of .shtml containing a Server Side Included (SSI) HTML file; Scream Tracker V2 Music Module (MOD) file
STR: Screensaver file
SWA. Macromedia director files (MP3 files) Shockwave sound files
SWF: Shockwave Flash objects
SYS: System files
T
T64: Commodore 64 emulator tape image files
THEME: Windows 95 desktop theme file
TIF, TIFF: Tagged Image File Format (TIFF) bitmap
TMP: Windows Temporary Message File
TRM: Terminal File
TXT: ASCII text format sound data
TZ: Older compressed format file
V
VBA: VBase file
VBP: Microsoft Visual Basic project file
VBW: Microsoft Visual Basic workspace file
VBX: Microsoft Visual Basic user-customized control
VQE, VQL: Yamaha Sound-VQ locator files
VQF: Yamaha Sound-VQ files (standards may appear)
VRF: Oracle 7 configuration files
VSL: Download list files (GetRight)
W
WAB: Microsoft Outlook file
WAD: Large file containing videos, player levels, and other information about the DOOM game
WAL: Quake 2 body file
WAV: Windows Waveforms
WBK: Microsoft Word Backup files
WFM: Visual dBASE Windows Forms
WFN: Symbols for use in CorelDRAW
WIZ: Microsoft Word Wizard
WRL: Virtual Reality Model
WWL: Microsoft Word interpreter files
WWWL: Microsoft Word Interpolator File
X
X
XLK: Microsoft Excel Backup
XLL: Microsoft Excel Interpolator File
XLM: Microsoft Excel Macro
XLS: Microsoft Excel Worksheet
XLT: Microsoft Excel Templates
XLV: Microsoft Excel VBA Modules
XLW: Microsoft Excel Workbook/Workspace
Z
ZAP: Windows Software Installation Profile
ZIP: Zip file