'Best method' to Recover Password of XLSX File

Q: I need to recover xlsx file password. What are the 'best method' or 'best program' out there?

A: An xlsx file means that it is a Microsoft Excel 2007-2019 document. Currently, the only option for files of this format would be a brute-force attack without any guarantees of successful result. The more complex and longer the password is, the more time it will take to find it.

But the good news about xlsx files is that for this file format GPU acceleration on AMD/NVIDIA graphics cards is a feasible option. If a password cracking program supports video cards, the search will run much faster (possibly even several times faster).

It is also a good idea to "clear" the range of possible passwords of any obviously unfit combinations. If you know the password structure, its length, order of characters that make up the relevant character set, or possible word entries, you should definitely make the best use of this knowledge.

Try Accent OFFICE Password Recovery by Passcovery.

The program accelerates on NVIDIA/AMD graphics cards and offers range customization options:

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Accent OFFICE Password Recovery by Passcovery for Microsoft Office and OpenOffice/LibreOffice
AccentOPR by Passcovery for Microsoft Office 6-2019