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About this item. Game file size. Nintendo Switch: 5.6 GB. Nintendo Switch 2: 5.7 GB. Supported play modes. TV mode. Tabletop mode.

: Larger file size due to "padding" data that fills up the standard cartridge capacity.

Yuzu or Ryujinx are the industry standard for emulation.

Unlike XCI files, an NSZ file cannot usually be played directly; it must be decompressed and installed to your system storage or SD card via an installer tool. File Format Comparison

An file is a highly compressed version of a digital Nintendo Switch game, update, or DLC. It is a modified version of the standard NSP (Nintendo Submission Package) format, which represents games downloaded directly from the official Nintendo eShop.

: Installing modified or untrusted custom XCI/NSP files can permanently corrupt your console's operating system (bricking) or result in an immediate hardware ban from Nintendo Switch Online services. Always verify file signatures using tools like NXFileViewer before attempting an installation. 6. Conclusion: Which Format Should You Choose?

: If your console is modded, you can transfer the XCI file to your Switch via a USB drive or SD card, depending on your homebrew setup.

For users with custom firmware (CFW) like Atmosphere on an actual Switch, the process is simpler.

: Competitive players use glitches like the Cappy Return Cancel (CRC) in two-player mode to activate flags or triggers from massive distances. Summary Comparison Table Feature XCI Format NSZ Format Origin Physical Cartridge Dump Digital Package (Compressed) File Size Larger (includes padding) Smallest (compressed) Compatibility High (works with most CFW) Requires modern installers (e.g., Tinfoil)

To play Super Mario Odyssey from an NSZ file, you must use a compatible homebrew installation tool on your console (such as Tinfoil, DBI, or Awwbee). These installers read the compressed NSZ file. They decompress the data on the fly.

It is designed specifically to save storage space. By stripping away non-essential data and using lossless compression, NSZ files are significantly smaller than their XCI or NSP counterparts.

Understanding Nintendo Switch File Formats: XCI vs. NSZ for Super Mario Odyssey