PCauthorities.com presents…
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
YDR - Extension Details
Date Added: January 01, 1970
File Extension:  .YDR
Description 1: The .YDR file extension is linked to the recording of a duel from the "YuGiOh! Power of Chaos file. YuGiOh! refers to the cardtrading game Konami developed for Windows. The recording allows for playback at later times and can be saved by one of the three available Power of Chaos games Kaiba the Revenge, Joey the Passion and Yugi the Destiny.
File Type:   Game file
Mode: Binary
Program(s) to Open:  Windows: Konami YuGiOh! Power of Chaos
Common:
Extension: