Lostmypass Ms Excel Password Recovery Verified |link|

For users with highly sensitive data who prefer local processing, software like or Passper for Excel offers similar recovery methods (Dictionary and Brute Force) that run entirely on your own computer. Forgotten Protection Password | Microsoft Community Hub

Simple sheet protection (workbook or worksheet) can often be removed in 1 to 2 seconds . More complex file-open passwords may take minutes to a few days depending on the chosen recovery method.