For those interested in playing Super Mario Odyssey on their Switch console, the game is widely available in physical and digital formats. Players can purchase the game from the Nintendo eShop or from retail stores.
Also, note that I'm assuming you are looking for general information about the game and file format. If you are looking for a more technical analysis of the XCI file format or information on how to create or modify XCI files, I can try to provide more detailed information or point you in the direction of resources that may be helpful. super mario odyssey switch xci