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The File Extension Library

What is a file extension?

Short answer: it's the set of letters after the period (.) in the name of a file.

Long answer: File extensions signify the file format of a file. It tells the operating system (OS) how data was stored in the file. Not all OS, require a file extension though. For instance, this is optional in Unix, but is mandatory with MS-DOS and Windows systems.

In most file formats the file type is actually defined by the contents (first bytes, file structure), but extensions are used to define the application that is used for opening the file.

Below is a detailed database of thousands of file extensions our team has compiled for you. Feel free to browse!


Browse all Extensions:
ABCDEFGHIJKLMNOPQRSTUVWXYZ
TEMP - Extension Details
Date Added: January 01, 1970
File Extension:  .TEMP
Description 1: File extension .TEMP is associated with the SWISHE file. SwishE refers to the free, fast and flexible open source system of indexing web page collections or other such files. This program is perfect for use on collections of a ton or a million documents. It utilizes the GNOME libxml2 parser along with a collection of filters, enabling it to index email, PDF, plain text, XML, HTML, Microsoft® PowerPoint/Word/Excel and practically any file that allows for conversion to HTML or XML text. The Swishe application can also supplement databases such as the MySQL® DBMS for faster fulltext searching.
File Type:   Temporary file
Mode: Binary
Program(s) to Open:  Associated application: SwishE
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