: These are file formats used for Nintendo Switch games. NSP is the format for digital eShop games, while XCI is an image of a physical game cartridge.
If this was a file you found online, be cautious, as files from unofficial sources often carry security risks. Super-Mario-Maker_2-NSP-XCI-Update-3___40_1__41...
If you were actually looking for regarding Super Mario Maker 2 , you might find these topics more aligned with your interest: : These are file formats used for Nintendo Switch games
: Files with these names are usually distributed on file-sharing sites or torrents for use with modified (jailbroken) consoles or emulators like Yuzu or Ryujinx. Super-Mario-Maker_2-NSP-XCI-Update-3___40_1__41...