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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
SAVEDSEARCH - Extension Details
Date Added: September 10, 2008
File Extension:  .SAVEDSEARCH
Description 1: .SAVEDSEARCH is the extension linked to searches saved using the Spotlight program of Apple, which comes included in Mac OS X 10.4 and later models. The file is saved as "Smart Folder, updating dynamically based on search parameters that were saved with the folder. Save Spotlight searches by running a Spotlight search and choosing "Show All from the Spotlight menu and then hitting "Save in the results window appearing in the Finder. "~user/Library/Saved Searches is the default location for the saved searches.
File Type:   System file
Mode: Binary
Program(s) to Open:  Macintosh: Apple Finder (Mac OS X 10.4 or later)
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