Problem Save PokeSword file main

[JollyBlue]

Hello everyone, I will be direct and go to the point.
I have a switch (modified with kosmos but for a while I only play original sysnand stock), in the sysnand stock I played pokemon sword and I go online quietly. I want to extract the save from the original switch to modify it with pkhax (I need the main file inside the save with encrypted code 000000000000f1).
With the guide I used to move the save from emummc to sys (with biskeydump, memloader and hacdiskmount). I entered the save folder of the switch and through the extracting tool I arrived at the main file and modified it with pkhex, only that I no longer know how to reinsert this modified main file into the save 000000000000f1 which I would then later copy to the switch always with Hacdiskmount ... is there a way to do it?
Thank you

Edited January 13, 2020 by JollyBlue