NSP files, short for Nintendo Switch Package files, are archives used to distribute games and applications on the Nintendo Switch console. They can be installed via the console’s built-in package installer and are the primary way to obtain new software for the system. NSP files are encrypted to prevent unauthorized distribution, but various methods exist to obtain and install them.
Obtaining NSP files can be beneficial for several reasons. NSP files can be used to install games and applications that are not available in the official Nintendo eShop, such as homebrew software, emulators, and modified versions of existing games. Additionally, NSP files can be used to create backups of purchased games and applications, ensuring that they can be reinstalled if the originals are lost or damaged.