What is going on with file types?

Answer:

Different files in computer applications have different data recording formats. In order to easily identify them before the system or program officially accesses their contents, people assign them Different extensions. Extensions, as an important part of digital file attributes, play a very important role in daily applications and operations.

Knowing and understanding file extensions will definitely help you further understand the computer operating mechanism and future applications

The following are common extensions:

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aiff sound file Windows media Player

.!!! Netants temporary file Netants

.ani animated mouse

.arj compressed file ARJ

.avi movie file Windows media Player

.awd fax document

.bak backup file

.bas Basic language Basic

.bat DOS batch file

.bin MAC binary code file Stuffit Expander

.bmp Image file drawing/viewing software

.cab Compressed file Winzip

.cdr Corel drawing file Corel Draw

.chk The files created after Scandisk inspection can be deleted

.com DOS command file self-execution

.cpx Cryptapix encrypted picture file Cryptapix

.cur static mouse

.dbf Database file dBase, FoxBase, Access

.dll Application extension

.doc Document file Word

.dwg AutoCAD file AutoCAD

.eps Illustrator picture file Adobe Illustrator

.exe executable file self-execution

.fon font file

.gb national standard code file NJX word processing

.get Getright temporary file

.gif 256-color image file drawing/viewing software

.gz available for UNIX or LINUX Compressed files used Winzip

.hqx Macintosh files Stuffit Expander

.htm Web browser

.html Web browser

. ico icon

.ini Configure and set up notebook or WordPad

.ipx IPX demonstration file browser and install IPX plug-in

.jiff image file to draw/view pictures Software

.jpeg Compressed image file drawing/viewing software

.jpg Compressed image file drawing/viewing software

.js javascript

.lnk shortcut connection file connection file corresponding program

.m3u Winamp playlist Winamp

.mid sound file Windows media Player

.vod Quicktime video file Quick Time

.mp3 Compressed music file Winamp

.mpeg video Windows media Player

.mpg video Windows media Player

.njx NJX document NJX word processing

.pcb Electronic circuit diagram design file Protel PCB

.pdf Portable document format, containing pictures, text, etc. Adobe Acrobat, Adobe Acrobat Reader

.pm5 PageMaker 5 typesetting file Page Maker

ppt Power Point file Microsoft Power Point

.ps GhostScript

.psd Photoshop file Adobe Photoshop

.pub Publisher typesetting file Microsoft Publisher

.qt Quicktime image file Quick Time

.ra Real Audio sound file Real Audio

.ram Real Audio image file Real Audio

.rar Compressed file Winrar

.rsf Richwin font file

.sch Electronic schematic design file Protel Schematic

.scr Screen saver file

.sea Macintosh startup File

.sit Compress Stuffit Expander

.swf Flash animation file browser and install Macromedia flash plug-in

.sys system file

.tar UNIX compressed file Winzip

.tif High-quality image file drawing/viewing software

.tiff High-quality image file drawing/viewing software

.tmp temporary files can be deleted

.ttf font files

.txt plain text files notebook or all word processing systems

.vbs Visual Basic programming FileMicrosoft Viasual Basic

.viv VIVO image file browser with VIVO plug-in

.vqf Compressed sound file Yamaha SoundVQ Player

.wav Uncompressed sound File Windows media Player

.wk1 Lotus 123 calculation software file Lotus 123, Excel

.wq1 Q-Pro Calculation software file Q-Pro, Excel

.wri Write text document Word

.xls Excel calculation software file Microsoft Excel

.Z UNIX compressed file Winzip

.zip compressed file Winzip

Image file:

bmp Windows or OS/2 Bitmap

clp Windows Clipboard

cup Dr. Halo

dib Windows or OS/2 DIB

emf Windows Enhanced Meta file

eps Encapsulated PostScript

fpx Flash Pix

gif Compuserver

iff Amiga

img GEM Paint

jpg JPEG - JFIF Compliant

lbm Deluxe Paint

mac Mac Paint

msp Macrosoft Paint

pbm Potable Bitmap

pct Macintosh Pict

pcx Zsoft Paintbrush

pic PC Paint

png Portable Network Graphics

ppm Portable Pixelmap

psd Photoshop

psp Paint Shop Pro Image

ras Sun Raster Image

raw Eaw File format

rle Windows or CompuServer RLE

sct SciTex Continuous Tone

tga Truevision Targa

tif Tagged Image file format

wmf Windows Meta File

wpg WordPefect Bitmap

.ACA

Role document used by Microsoft's agent

.ace

A compressed format document with a compression rate even higher than WinRAR, which can be opened using tools such as WINACE

.acf

System management configuration

.acm

Audio compression management driver, providing encoding and decoding functions for various sound formats for Windows systems

.acs

Same as .acm, but saved locally

.ADE

Microsoft Access Project Extension

.ADN

Blank project template for Microsoft Access

. ADP

Microsoft Access project

.aif

Sound file supports compression and can be played using Windows Media Player and QuickTime Player

.AIF

Audio file, use Windows Media Player to play

.AIFC

Audio file, use Windows Media Player to play

.AIFF

Audio file, played using Windows Media Player

.ani

Animated cursor file extension, such as animated hourglass.

.ans

ASCII character graphic animation file

.ap

Application file, existing in Dbase, Foxbase, Foxpro system software Environment

.app

Application files exist in the environment of Dbase, Foxbase, and Foxpro system software

.arc

An earlier compressed file, you can use WinZip, WinRAR, PKARC and other software to open

.arj

compressed files. You can use WinZip, WinRAR, PKARC and other software to open

.art

It is the most commonly used image format in America Online. If you use Windows 2000, you must install a patch to view it

.asc

ASCII text files that can be processed by all types of word processing components.

Some systems may also use these file extensions to indicate that the file contains image information

.asf

Data files or Lotus 1-2-3 Screen file

.asf

Microsoft Media Player supports video streams that can be played using Windows Media Player

.ash

Assembly language include files, similar to .h files in C/C++

.asm

Assembly language source program files, generally compiled using MASM or Turbo ASM

.asp

Microsoft's video streaming files can be opened using Windows Media Player

.asp

The Active Server Page proposed by Microsoft is a server-side script that is commonly used For large-scale website development, it supports database connections, similar to PHP. It can be written using Visual InterDev and is currently very popular

.asx

Shortcut to Windows Media media files

.au

It is a commonly used sound file format on the Internet. It is mostly created by Sun workstations and can be played using the software Waveform Hold and Modify. LiveAudio in Netscape Navigator can also play .au files

.avi

A Windows multimedia file format using the Microsoft RIFF specification for storing sounds and moving pictures

.awd

Fax browsing document, used for fax display

.awp

Fax keyword browser

.aws

Fax Signature Viewer

.adm

ADM_auto file

.b64

Base64 encoded Files can be encoded using WinZip

.bak

Backup files are generally auxiliary files created automatically or through commands. They contain the latest version of a file and have The same file name as this file

.bas

Basic language source program file can be compiled into an executable file. The current Basic development system is Visual Basic

.bat

Batch file, in MS-DOS, the .bat file is an executable file, consisting of a series of commands, which can include calls to other programs

. bbs

Electronic bulletin board system article information file

.bfc

Windows briefcase file

.bin

Binary file, its use depends on the system or application

.bmp

Bitmap bitmap file, which is the own format developed by Microsoft Paint and can be used by a variety of Windows and Supported by the Windows NT platform and many applications, it supports 32-bit color and is a resource file format used to create icons for Windows interfaces.

.bw

It is a black and white graphics file format that contains various pixel information

C language source program file , compiled under the C language compiler using

.cab

The compressed package format developed by Microsoft, commonly used in software installation programs, uses the utility program that comes with Windows, Extract.exe It can be decompressed, WinZip, WinRAR, etc. all support this format

.cad

AUTOCAD graphics file

.cal

Calendar files in Windows

.cbx

Tag files exist in the environment of Dbase, Foxbase, and Foxpro series software

.cda

CD audio track saved on AudioCD

.cdf

Internet Explorer channel file

.cdr

CorelDraw A graphics file format, which is a graphics image file format that can be used in all CorelDraw applications

.cdx

index file, which exists in Dbase, Foxbase, and Foxpro systems In the software environment

.cfg

Configuration file, a file used by the system or application software to configure its own functions and characteristics

.chm

Compiled HTML file, often used to create help files and electronic documents

.clp

The file format in the clipboard under Windows

.cmd

The batch file for Windows NT/2000 actually has the same function as the BAT file, just to be different from the BAT under DOS/Windows 9x

.cmf

Sound card standard music files, FM synthesizers, etc. can be played back

.cnf

NetMeetting conference connection file

.cnt

Online help file directory index file, usually saved together with the .hlp file of the same name

.col

A color palette created by Autodesk Animator, Autodesk Animator Por and other programs File format, which stores the RGB values ??of various items in the palette

.com

DOS executable command file, generally less than 64KB

. cpd

Fax cover file

.cpe

Fax cover file

.cpi

International code page, Used to provide the code page information of the corresponding country

.cpl

Control panel extension file, used by Windows operating system

.cpp

C++ language source program, a very powerful language, has corresponding development systems on various platforms

.crd

Card file in Windows

. crd

Card file in Windows

.crt

Certificate authentication file used for security

.csv

Comma-delimited text file, generally used for data exchange between different applications

.cur

Cursor resource file format under Windows, cursor editing software can be used Edit

.css

Text/css file

.dat

Data file for use in the application

.dat

The image and sound files in the VCD can be called by the VCD player software, or played through the VCD player

.dbf

Database file, Database files generated by Foxbase, Dbase, Visual FoxPro, and other database processing systems

.dcx

Fax browsing document files

.ddi

Image files, DUP, HD, IMG and other tools can be expanded

.dev

Device driver

.dib

Device-independent bitmap file, which is a file format whose purpose is to ensure Bitmap graphics created with one application can be loaded or displayed by other applications

.dir

Directory files

.dll

Windows dynamic link libraries are almost everywhere, but sometimes conflicts between different versions of DLLs can cause various problems

.doc

It is the current market share Documents created by the word processing software Word in Microsoft Office, the most popular office software

.dos

Some system files of MS-DOS retained by Windows

.dot

Microsoft Word document template file can simplify the creation of documents in some common formats through templates, and can embed VBA programs to realize certain automation functions

.drv

Device driver files, used in various systems

.dwg

AutoCAD drawing files are also a format supported by many drawing software and are commonly used in* **Share data

.dxb

A graphics file format created by AutoCAD

.dxf

A graphics exchange format, a A computer-aided design file format originally developed for use with AutoCAD to facilitate the transfer of graphics files between applications. It stores graphics in ASCII mode and is very accurate in expressing the size of graphics

.der

Certificate file

.dic

Txt file

.emf

Developed by Microsoft The overall design goal of the Windows 32-bit extended metafile format is to make up for the shortcomings of the *.wmf file format used in Microsoft Windows 3.1 (Win16) and make metafiles easier to use

.eps

A graphics file format described in the PostScript language. It is saved as a text file and can print out high-quality graphics images on a PostScript graphics printer. It can represent up to 32-bit graphics images

.err

Compilation error file, exists in Dbase, Foxbase, Foxpro series software environments

.exe

Executable file, although the suffix name The same, but with a different format and version

.exp

The display card driver used by the 3DS

.exc

Txt file

.fky

Key macro file, exists in the environment of Dbase, Foxbase, Foxpro series software

.flc

Autodesk Animator Animation files with Animatorpro support 256 colors, the largest image pixel size is 64000*64000, support compression, and are widely used in animation sequences in animation graphics, computer-aided design and computer game applications

. fnd

Saved search results

.fon

Bitmap font file

.for

Fortran language Program

.fot

Shortcut key to font

.fp

Configuration file, exists in Dbase, Foxbase, Foxpro series software

.fpt

Remarks field file exists in the environment of Dbase, Foxbase, Foxpro series software

.frt

Report file, exists in Dba

se, Foxbase, Foxpro series software environment

.frx

The report file exists in the Dbase, Foxbase, Foxpro series software environment

.fxp

The compiled program exists in the environment of Dbase, Foxbase, and Foxpro series software

C language source program header file

.hlp

Windows application help files

.hqx

Macintosh uses BinHex to encode binary files into 7-bit text files. Most Macintosh files all appear as .hqx (.bin is rarely used). In Macintosh, you can use StuffIt Expander to decode .hqx, and in Windows, you can use BinHex 13 to decode

.ht

HyperTerminal

.htm

Save a text file in Hypertext Description Language, which is used to describe various web pages and can be opened using various browsers

.html

Same as .htm file

.icm

Image color matching description file

.ico

Icon files in Windows can contain multiple formats of the same icon and are created using icon editing software

.idf

MIDI instrument definition

. idx

Index file, exists in the environment of Dbase, Foxbase, Foxpro series software

.iff

File exchange format file, this file format is mostly used Amiga platform, on which it can store almost all types of data. On other platforms, the IFF file format is mostly used to store image and sound files

.image

MAcintosh disk image file, common in FTP sites of Apple computers, processed by Shrink Wrap in Macintosh

.ime

Input method file under Windows

.img

Disk image files can be restored to a disk after being opened with HD-COPY, WinImage and other tools

.inc

Assembly language Contains files, similar to .H files in C/C++

.inf

Software installation information under Windows. The standard installation program of Windows installs software based on the installation information in this file. Drivers, etc. are installed

.ini

The initialization information file in Windows is no longer used much. New applications save the settings in the system registry

.jar

A kind of compressed file, a new version of ARJ, but it is not very popular. You can use WinJar, Winrar, etc. to open it

.jpeg

A picture compression file, the same as .jpg

.jpg

The static image compression standard formulated by the Static Image Expert Group, has a high compression ratio and is very widely used. , you can use image processing software such as PhotoShop to create

.job

JobObject

.jfif

Jpeg file

.kbd

Keyboard layout file

.lmb

A graphics file format used in Deluxe Paint, its encoding method is similar to *.iff

.lnk

Shortcut, this file points to another file. Each item in the program folder of the start menu is an LNK file

.log

Log files, usually used to record some events

.lzh

An ancient compressed file that can be opened using WinRAR

.mac

Used in Macintosh

A medium grayscale graphics file format, used in Macintosh Paintbrush, its resolution can only be 720*567

.mag

Graphics file format

. mcc

Dialer10CallingCard (calling card file)

.mci

MCI command set

.mdb

Microsoft Access The database format used is a very popular desktop database

.men

In-memory application file, which exists in the environment of Dbase, Foxbase, and Foxpro series software

.mid

Audio compressed files were once very popular, but are rarely used in current software

.mif

MIDI instruments

.mmf

Microsoft mail, relatively rare

.mnt

Menu file, exists in the environment of Dbase, Foxbase, Foxpro series software

.mnx

Menu file, exists in the environment of Dbase, Foxbase, Foxpro series software

.moov

QuickTime or Mac Movie and television formats, played by Sparkle, FastPlayer, MoviePlayer and other software on Macintosh, and played by Quicktime on Windows

.mov

Movie files using Apple's QuickTime format can be played on Macintosh by Quicktime Sparkle, FastPlayer, MoviePlayer and other software can be played. In Windows, it can be played by Quicktime.

.movie

QuickTime or Apple's film and television formats can be played in Macintosh by Sparkle, FastPlayer, MoviePlayer and other software. Playback, can be played by QuickTime in Windows

.mp3

Audio files compressed using the MPEG-1 Layout 3 standard are the main compressed audio files on the Internet. Due to their extremely high With its high compression rate and low distortion, it is currently the main file format for music piracy, but it is currently challenged by new standards such as VQF and WMA.

.mpg

Adopts MPEG-1 Standard compressed video files are very similar to the format used by VCD, providing CD-quality audio signals and 320*240 video resolution. Most current media player software can play them. Microsoft's WMV8 and MPEG-4 compressed AVI files are Its strong competitor

.mpt

A graphics file format used in Macintosh

.msg

Microsoft Mail Document

.msk

A graphics file format in Animator Pro that contains a bitmap graphic

.msn

Microsoft Network File

.mmm

Mplayer

.mlv

MPEG file

.mak

Mak file

.man

Application/x-trof-man format file

.mpa

MPEG file

.mpe

MPEG file

.nws

Microsoft Internet News Message

.obj

Object code

.opt

Is the graphics file format created by Animator Pro

.ovl

Due to the many functions of the software, the memory On the small side,

Executable files that cannot be loaded into memory at once may have an ovl file with the same file name

.obd

Office.binder.95

.obt

Office.Binder.Template

.obz

Office.Binder.Wizard

.ofn

Office. File.New

.qic

Microsoft Backup Policy

.qpr

Query file, Use it in the environment of Dbase, Foxbase, Foxpro series software

.qpx

Query files, use it in the environment of Dbase, Foxbase, Foxpro series software

.qt

Macintosh's QuickTime film and television format can be played by Sparkle, FastPlayer, MoviePlayer and other software on Macintosh, and can be played by Quicktime on Windows

.qtm

Animation file, this file format was developed by Apple Computer Company and is supported by Apple Macintosh and Microsoft Windows platforms. It supports 25-bit color, the maximum image resolution is 64000*64000, supports compression, and is used to save audio and motion video information

.que

QueueObject

.rar

The compressed file format provided by WinRAR has a compression rate higher than ZIP and also provides more functions. To enrich

.rec

recorder macro files under Windows

.reg

Windows 95 system and application registration files , although this kind of file is saved as a plain text file, there are still version problems. Different operating systems use different REG file versions

.rif

RTF format (Rich Text format ) file

.rle

A compressed bitmap file format. The RLE compression scheme is an extremely mature compression scheme. It is characterized by lossless compression, which saves disk space. Space is not lost without losing any image data, but it takes more time to open this kind of compressed file. In addition, some applications with poor compatibility may not be able to open it

.rm

Video compressed files supported by RealPlayer under Windows, very popular streaming video files on the Internet, and many real-time video news all use this format. However, the latest Windows Media Video V8 has launched it launched a powerful offensive

.rmi

MIDI sequence file

.rtf

Rich text format file, describing the content in plain text, Able to save information in various formats, you can create it with writing tablet, Word, etc.

.ra

ReadAudio files

.ram

ReadAudio File

.rnk

Rnk file

.rpm

Audio/x-pn-realaudio-plugin format file

.sav

Archived file

.scp

A script file for automatic dial-up login for Internet dial-up users in Windows systems to avoid manual Cumbersome keyboard input when logging in

.scr

Barrier protection file

.sct

Screen file, in Dbase, Foxbase, Foxpro Use

.scx

screen files in the environment of series software, in Dbase, Foxbase, Foxpro series software

Used in an environment

.set

Microsoft backup set file is used to save the content to be backed up, settings and other information

.shb

A shortcut to a document

.shs

Fragments. You can drag and drop a piece of text from the WordPad to the desktop to create a fragment, but it is of little use.

.snd

Mac sound file, a sound file format developed by Apple Computer Company, is supported by the Macintosh platform and various Macintosh applications and supports certain compression

. spd

PostScript printer description file

.sql

Query file, used in the environment of Dbase, Foxbase, Foxpro series software

.svg

SVG can be regarded as the hottest image file format at present. It is based on XML and was developed by the WorldWideWebConsortium alliance. SVG is a scalable vector graphic

.svx

Amiga sound file, a sound file format developed by Commodore, is supported by the Amiga platform and applications, and does not support compression

.swf

flash is a product of Micromedia Strictly speaking, it is an animation editing software. In fact, it produces an animation with the suffix .swf. This format of animation can express rich multimedia forms in a relatively small size, and can also be combined with HTML The file reaches a state of "compatibility"

.swg

Virtual memory swap file, used by the operating system

.sys

System files, drivers, etc. have different definitions in different operating systems

.slk

Excel.SLK

.sit

Application/x-stuffit format file

.taz

is a TAR file compressed in .Z format

.tbk

Temporary database file, used in the environment of Dbase, Foxbase, Foxpro series software

.tga

Image file, the structure of this file format is relatively simple, it is a kind of graphics and image data A common format that has a great influence in the field of multimedia and is the preferred format for converting computer-generated images to television

.tgz

Winzip

.tif

Same as tiff

.tiff

image file. This image has a complex format, has a lot of storage content, and takes up a lot of storage space. Its size is 3 times that of a GIF image. , which is 10 times larger than the corresponding JPEG image. It was first popular on Macintosh and is now supported by mainstream image applications in Windows.

.tmp

Temporary files, generally system and application Temporary files generated by programs will be automatically deleted when the system and applications exit. If the program exits abnormally, the temporary files may remain on the disk. In a single-task system, they can be deleted immediately. In a multitasking system, temporary files that are not in use should be deleted

.trn

Translation files

.tsp

Phone Service provider

.ttf

Font files in TrueType format, which can be viewed using FontView.Exe

.txt

Text files

.ttc

Ttc file

.tar

Winzip

.url

InternetShortcut (shortcut to URL address on the internet)

.uls

ULS file

.vbx

Microsoft's Visual Basic

Language control

.vcd

The disc image file produced by the virtual optical drive tool

.ver

Version description, used to describe a certain A file with version information of a software. The content varies from software to software.

.voc

Sound file. This file format is developed by Creative Labs and is supported by Windows and DOS platforms. Compression

.vxd

Virtual device driver, very common in Windows operating systems, is an important system file

.vir

Vir file

.vsd

Visio.Drawing.4

.vss

Visio.Drawing.4

.vst

Visio.Drawing.4

.vsw

Visio.Drawing.4

.wab

Address book file, used by the address book program in the system

.wav

Audio file, this file format is a resource format used to save audio information on Windows. In Windows, it is played by Waveform Hold and Modify or Navigator, or "media player". There are many encoding methods, which require corresponding decoding programs to play.

.win

Window files, in Used in the environment of Dbase, Foxbase, and Foxpro series software

.wmf

A common metafile format in Microsoft Windows. It has the characteristics of short files and stylized patterns. The entire graphic is often spliced ??together from independent components, but the graphic is often rough and can only be edited in Microsoft Office

.wpc

WordPad Document Conversion

.wps

Wps text file, there are many versions, can be opened using Wps Office, Wps 2000, etc.

.wri

Windows WordPad Document

.wll

Word.Addin

.wbk

Work.Backup

.wiz

Word.Wizard