An NSP (Nintendo Submission Package) file is the standard format used for digital games, downloadable content (DLC), and software updates on the Nintendo Switch. It is the digital equivalent of inserting a game cartridge. 2. What is a RAR File?

After extracting the RAR, the final file must end in .nsp . Never execute a .bat , .scr , or .msi file on your computer under the guise of a console update.

If you prefer not to use a USB cable, you can transfer the file directly to your storage card.