A y3d file extension is used for Yu-Gi-Oh! On-Line card files.
Software that open y3d file
Y3D file extension - Yu-Gi-Oh! Online card
What is y3d file? How to open y3d files?
File type specification:
The y3d file extension is associated with the Yu-Gi-Oh! Online, an online card game developed by the Konami.
The y3d file contains game card information. No further information could be found.
The default software associated to open y3d file:
Yu-Gi-Oh! Online Duel Accelerator 
Company or developer:
Konami Corporation
Yu-Gi-Oh! Online Duel Accelerator is card video game for Microsoft Windows based on Japanese card game from world of Yu-Gi-Oh!
List of recommended software applications associated to the .y3d file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open y3d file, edit y3d file, convert y3d file, view y3d file, play y3d file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with y3d file - Yu-Gi-Oh! Online card
Click on the software link for more information about Yu-Gi-Oh! Online Duel Accelerator. Yu-Gi-Oh! Online Duel Accelerator uses y3d file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).
