.Y3D File Extension
File TypeYu-Gi-Oh! ONLINE 3 Deck File
What is a Y3D file?
Card deck file used by Yu-Gi-Oh! ONLINE 3: Duel Accelerator, an online digital card playing game; contains a deck of cards, or "recipe," that can be used for dueling against other players online; can be a custom user-made deck.
Player Y3D files are saved to the My Documents\Yu-Gi-Oh! ONLINE 3\players\ directory. Some preinstalled Y3D files are located in the \data\recipe\ directory of the game installation.