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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
V2I - Extension Details
Date Added: January 01, 1970
File Extension:  .V2I
Description 1: .V2I is a file extension linked to the Norton Ghost Virtual Volume Image. It refers to disk images that are backed up from a current volume with the use of Norton Ghost. A .V2I file includes a base backup of the entire hard disk. V2I files can be restored to other disks or mounted as new volumes using the Norton Ghost program.
File Type:   Backup file
Mode: Binary
Program(s) to Open:  Windows: Symantec Norton Ghost
Common:
Extension: