This is not a standalone file; it is the of a multi-part 7-Zip archive. Extension: .003 indicates it is a "split volume."
💡 Do you have the other numbered parts of this archive, or tub_adventures.7z.003
The filenames must be identical except for the numeric suffix (e.g., tub_adventures.7z.001 , tub_adventures.7z.002 ). This is not a standalone file; it is