UPD (update) files, on the other hand, are patches released by game developers to update and improve the game. These files contain fixes for bugs, performance enhancements, and new features. In the case of Mario Odyssey, UPD files can add new content, improve graphics, or fix issues that may have been present in earlier versions.
This is the core game file containing the initial release version (v1.0.0) of Super Mario Odyssey. mario odyssey nsp upd