: The file format. .nsp files are "Nintendo Submission Packages," which is the standard format for digital games on the Nintendo eShop.
: Files downloaded from unofficial sources often come as multi-part archives (hence the .par or .part extension you might see). These files carry a high risk of containing malware or adware designed to compromise your device. HYRULWAR-DE-(USA)-NSwTcH-[BASE]-NSP-Ziperto.par...
: Signifies that the file contains the base game data, excluding subsequent updates or DLC (Downloadable Content). : The file format