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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
SCT - Extension Details
Date Added: March 11, 2008
File Extension:  .SCT
Description 1: .SCT is a file extension linked to the Windows Script Component. It is the script used in creating a Component Object Model (or .COM) component. A variety of scripting languages may be utilized to write the .SCT files. It is for example possible to have the .SCT files written in Jscript, VBScript or JavaScript language.
Description 2: A Scitex Continuous Tone file bears the .SCT file extension. It is linked to CMYK or grayscale raster images that are created with Adobe Photoshop or on Scitex workstations. SCT files are frequently used for the large files generated by highend prepress workflows. To keep full image quality intact, SCT files are saved in uncompressed format.
File Type:   Raster Image file
Mode: Binary
Program(s) to Open:  Windows: Adobe Photoshop, Adobe Photoshop Elements, Corel Paint Shop Pro, fCoder ImageConverter Plus, XnView Macintosh: Adobe Photoshop, Adobe Photoshop Elements, XnView
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