This post covers the game Super Mario Odyssey and the common file formats people mention for Nintendo Switch games (XCI, NSZ). It focuses on legitimate ownership, gameplay, and tips — not on piracy or how to obtain or run copyrighted ROMs/ISOs.
When looking for Super Mario Odyssey files, you will typically encounter two primary file formats used for Nintendo Switch emulation (like Yuzu or Ryujinx) and homebrew: File Format Breakdown XCI (Switch Game Cartridge Image)
: This format is a raw, sector-by-sector backup of a physical Nintendo Switch game cartridge. It is typically stored within an HFS0 file system container and includes card-specific metadata, making it a complete disk image, similar to an ISO file. super mario odyssey xci nsz
A feature-rich manager that handles NSZ decompression natively.
: This is a compressed version of the standard NSP (Nintendo Submission Package) format. Developers and enthusiasts use NSZ to significantly reduce file sizes—often by 40-80%—making it easier to store and transfer. Despite its small size, Super Mario Odyssey is remarkably efficient, originally clocking in at only 5.7 GB . Core Mechanics: Capture and Movement This post covers the game Super Mario Odyssey
stands for " Switch Cartridge Image ." It is a 1:1 raw dump of a physical Nintendo Switch game card. When you dump a physical copy of Super Mario Odyssey to a digital file, the result is an XCI.
: Drag your Super Mario Odyssey.nsz or .xci file from your PC and drop it directly into the drive window. It is typically stored within an HFS0 file
: DBI will automatically stream, decompress (if it's an NSZ), verify the signatures, and install the game directly onto your system.