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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
VBS - Extension Details
Date Added: January 01, 1970
File Extension:  .VBS
Description 1: The .VBS extension is linked to the VBScript File. It is Virtual Basic script that is written in VBScript scripting language. This type of file is executable in either Internet Explorer or Windows and at times may use the .VB extension. VBS script files help with Visual Basic programming. If the VBS file is received as an unknown email attachment, do not open it. There is a good chance the email is infected with a virus or Trojan.
File Type:   Executable file
Mode: Binary
Program(s) to Open:  Windows: runs itself (if WScript is installed), can be edited with a text editor
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