I'm pretty sure .nsp is just a raw PFS blob. Therefore using hactool.exe -t pfs0 should do the trick.
EDIT: It could just be a renamed NCA for all I know...
how did you dumped an nsp?Wondering how I would go about doing this? .nsp is eshop title I think
mind making a guide? i have a huge amount of eshop titles to dump
how did you dumped an nsp?