[Tutorial] Ripping Guide for Animal Crossing New Horizons

[keyblade_crafter]

4 folders were extracted but there is nothing inside them. im not able to open then in the toolbox. any ideas? 

i also tried pressing 1, then extracting all the files instead of just the nca files, but that didnt work either.

edit: i should say the nsc builder extracted 4 nca files, but im not sure how to preview them with the toolbox