Hacking Opening .membody files?

[GenoCL]

Hi everyone.
I'm trying to extract some files from a Switch game only to find out the game uses .membody files and I can't for the life of me find online how to open or convert these files to something more manageable.

 

[thesjaakspoiler]

Memfs seems to be some sort of in-memory filesystem.
Someone mentioned memfs in regard to this tool :
https://github.com/LittleBigBug/QuickBMS?tab=readme-ov-file
Maybe that can do something with it.