: NSP files are associated with Switch games and are essentially a container format used for Switch eShop downloads. However, discussing or sharing NSP files directly usually pertains to piracy or illegal activities, which isn't something I can assist with.
The Nintendo Switch NSP (NSP file format) update for "It Takes Two" brings several enhancements and improvements to the game. The update includes: it takes two switch nsp update dlc top
"It Takes Two - Nintendo Switch (NSP) Update + DLC | Top Rated" : NSP files are associated with Switch games