The file you are referring to, Super.Mario.Maker.2.v3.0.2.NSP.Update.rar , is a compressed archive containing an update for the game Super Mario Maker 2 on the Nintendo Switch. This specific update (v3.0.2) is a minor patch released by Nintendo to address several issues and improve the overall gameplay experience. Official Update Method
: Enhancing general system stability for a better user experience. Super.Mario.Maker.2.v3.0.2.NSP.Update.rar
: Resolving specific issues that occurred after the massive content drop in v3.0.0. The file you are referring to, Super
: Highlight the game icon on your HOME Menu, press the + Button , select Software Update , and then Via the Internet . Regarding NSP/RAR Files : Resolving specific issues that occurred after the
: Downloading game files from third-party sources can expose your console to malware or lead to a ban from Nintendo's online services. Official updates are always recommended for stability and security. Version 3.0.2 Highlights