What is nsp file?

An NSP file is a file format used by the Nintendo Switch console to distribute and install games, updates, and DLC content. It typically consists of a single file that contains the game data, which can be installed directly on the console via a variety of methods, including USB, wireless, or eShop. NSP files can be created using tools such as HacPack and are often distributed through online forums and websites. They are commonly used by people who want to install games and content on their Nintendo Switch console without purchasing them from the official eShop. However, it is important to note that downloading and distributing copyrighted material is illegal, and doing so can result in legal repercussions.