A filename extension is an identifier specified as a suffix to the name of a
computer file. The extension indicates a characteristic of the file contents or its
Large computer file extension library with detailed explanation of each file type
with links to download free or associated software programs.
A to A4M - Comprehensive alphabetical index of file extensions on WhatIs.com.
File Extension, File Type .a, UNIX static library file. .asm, Non-UNIX assembler
source file. .asp, Active Server Page. .awk, An awk script file. .bat, MS-DOS batch
Webopedia's list of Data File Formats and File Extensions makes it easy to look
through thousands of extensions and file formats to find what you need.
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Computer dictionary definition for what file extension means including related
links, information, and terms.
Searchable database of file extensions, explaining what they are used for and
which programs they are associated with.
A file extension is the group of characters, usually 3 or 4 in length, after the period
in a full file name. Here's more about file extensions...
A list of common file extensions and file types that are good to know.