An mj4 file extension is related to the Sugopita software developed by Objectif Lune KK.
MJ4 file extension - Objectif Lune Sugopita data
What is mj4 file? How to open mj4 files?
File type specification:
The mj4 file extension is associated with the Sugopita, an application developed by the Objectif Lune KK.
Sugopita was developed in Japan and all information about it are in Japanese.
This mj4 file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.