This is a 3D project file created with Autodesk Maya application. It contains large list of commands to specify information about the file. A Maya file can be opened and edited in any text editor to fix any issues with the commands in case a file gets corrupt. These files contain information for defining the 3D Scene information such as geometry, lighting, animation, and rendering.
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A file with .usdz is a ZIP archive for the USD (Universal scene description) file format that contains and proxies for files of other formats embedded within the archive.
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