Wd-marvel-repair-tool-4.0.4-3.3.1-fu11.7z

extension means it’s compressed with 7-Zip. Often these archives contain:

The "fu11" package allowed for rewriting the sector. It allowed for miracles, at a cost. WD-Marvel-Repair-Tool-4.0.4-3.3.1-fu11.7z

: Provides tools to read and regenerate ROM data if the original chip is damaged. Head Mapping extension means it’s compressed with 7-Zip