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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
RDB - Extension Details
Date Added: December 12, 2008
File Extension:  .RDB
Description 1: .RDB has to do with the N64 ROM Database. It is a file extension that includes a list of .N64 and .Z64 files (or Nintendo 64 ROMS) that users can play using an N64 emulator. Use the RDB format to identify unknown ROMS as well as save emulator settings for every game played.
Description 2: The .RDB extension is tied with Wavelet Video Image file. It is the "wavelet video video format that CCTV security cameras like the Security VideoCam use. Playing back .RDB files is possible with the help of the software known as QuickView. This program comes included and forms part of the security camera hardware. RDB files are usually saved together with .60D files.
File Type:   Video file
Mode: Binary
Program(s) to Open:  Windows: QuickView
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