ROM Hack Question How to export saves from emunand?

[Keylogger]

Is there any way to export saves from an emuMMC on hidden partition on SD card?
My switch is dead, I have no NAND backup, no biskey, nothing except my emummc on my sd card.

Is it possible, by any way to mount or explore content of this emummc and export saves?

 

[Keylogger]

I found NxNANDManager, mounted my SD Card partition but I need help to export my saves from it.
I can dump SYSTEM and USER partition to a bin file (are saves in SYSTEM or USER ??) and once i have a dump, how to use it??