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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
V64 - Extension Details
Date Added: January 01, 1970
File Extension:  .V64
Description 1: The .V64 extension is linked to Nintendo 64 ROM Dump. It is a file where data from a particular Nintendo 64 ROM cartridge get "dumped using Doctor V64. Another term for the .V64 file format is "byteswapped ROM image. With an N64 emulation software program handy, users can play .V64 files whether they have a Windows or a Mac computer. Nonbyteswapped N64 ROMs normally have the .Z64 extension attached.
File Type:   Game file
Mode: Binary
Program(s) to Open:  Windows: Daedalus, Nemu64, Project64, TR64, TrueReality, UltraHLE Macintosh: Mupen64, N64emu, Sixtyforce, TrueReality
Common:
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