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File Format
Name Yaz0
Extension(s) .szs

Yaz0 is a lossless binary compression format designed by Nintendo for use in game development. It is found in many Nintendo titles from the 2000s (Mario Kart Wii, The Legend of Zelda: The Wind Waker, Super Mario Sunshine, etc...) and is often used to compress an archive (like RARC) containing model and texture files. It uses a form of run-length encoding. Compressed files can be easily identified in a hex editor, as the first 4 bytes of the header read "Yaz0", in ASCII. Usually, compressed files take on the extension ".szs" regardless of their original format.

Tools that handle Yaz0 compressed files

Further Reading

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