NSP files ( Nintendo Submission Package ) are the digital equivalent of an installer for Nintendo Switch content. They are the same format Nintendo uses for official eShop downloads, containing game code, graphics, and audio. Core Concepts
In the context of the Nintendo Switch, stands for Nintendo Submission Package . These are digital game files—effectively "digital cartridges"—that contain everything needed to install and play a game, including the ROM, icons, metadata, and sometimes updates or DLC. Understanding NSP vs. XCI Juegos Nintendo Switch Nsp