Common File Extensions Web Design 1
.mov
A file format used to display QuickTime movies
.wmv or .avi
A file format used to display standard Microsoft movies
.wav
A file format used to identify MS Windows based sounds
.txt
A text based file usually created in MS Notepad
.htm or .html
A typical web page
.MP3
AMP3 Audio File
An Adobe Acrobat Portable Document File used on the Internet
.exe
An application or program, also called an executable file
.ra, .rm, or .ram
Another common file format for data from Real Media
.tif or .tiff
Another common graphic file format but not one use on the Internet
.msg
Mail Message File
.doc or .docx
A MS Word document
.mdb
A Microsoft Access Data Base File
.mdb or .accdb
A Microsoft Access database file
.xls or .xlsx
A Microsoft Excel spreadsheet file
.bmp
A Microsoft Windows graphic file format (MS Paint file)
.ppt or .pptx
A PowerPoint file
.tmp
A Tempory file
.hlp
A Windows help file such as the help file for MS Word
.bat
A common file format used to compile simple commands for a computer to execute
.gif
A common graphic file format for web pages used for line art or clip art
.jpg or .jpeg
A common web based graphic format used for photographs or pictures with a lot of colors
.zip, .tar, .gz, or .tgz
A compressed file used to shrink or compress IBM Windows or DOS files for transfer
.com
DOS command
