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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
VLT - Extension Details
Date Added: December 03, 2009
File Extension:  .VLT
Description 1: File extension .VLT is associated with the WinVault File Archive. It refers to a secure container format called the "vault that is used for storing AES encryptionencrypted data. Once files are added and put into the vault, the files are secured with passwords. Open the files by going to the WinVaults File > Extract option and then giving the right password.
File Type:   Encoded file
Mode: ASCII
Program(s) to Open:  Windows: WinVault
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