The file is packed in a RAR archive to reduce its size for sharing. You will need a utility like WinRAR or 7-Zip to extract the actual .nsp file.
Even a few seasons later, 2K22 is praised for its refined stamina system and "shot contest" logic. On the Switch specifically, the game is a technical marvel, squeezing a massive AAA experience into a portable profile. The City vs. The Neighborhood: NBA-2K22-nsp.rar