How can I extract the content of a .nsp file and remake a new one after

[sirgilmour]

I fell on this big .nsp file containing more than 500 Snes roms for the good official switch emulator that runs games without sound issue unlike Retroarch.
I tried an official (us) game and it worked almost flawless and was pleased with it, then tried a translated one and said to myself, I could try a more recent patch, also remove unwated titles and add missing ones etc...
Anyone know a simple way to extract the content of this .nsp file to a folder, remove the games I don't want, add the new ones and compress it all into a working .nsp file again?

Thanks in advance and many cheers

 

[BigOnYa]

You can try this:
https://gbatemp.net/threads/how-to-easy-extract-game-files-from-nsp-xci.534724/

 

[sirgilmour]

You can try this:
https://gbatemp.net/threads/how-to-easy-extract-game-files-from-nsp-xci.534724/

Tried and it did not work

 

[Draxzelex]

I fell on this big .nsp file containing more than 500 Snes roms for the good official switch emulator that runs games without sound issue unlike Retroarch.
I tried an official (us) game and it worked almost flawless and was pleased with it, then tried a translated one and said to myself, I could try a more recent patch, also remove unwated titles and add missing ones etc...
Anyone know a simple way to extract the content of this .nsp file to a folder, remove the games I don't want, add the new ones and compress it all into a working .nsp file again?

Thanks in advance and many cheers

Have you tried using Hactool?