Start by downloading LostMyPass MS Excel Password Recovery from the official website. Follow the installation instructions to install the software on your computer.

LostMyPass operates on a "Freemium" model that highlights the cryptographic differences in Excel versions.

I have written these assuming you are either promoting the software (as an affiliate or developer) or recommending it to your audience.

Provide a concise overview of LostMyPass’s new MS Excel Password Recovery offering: an online tool to recover or remove passwords from Excel workbooks to regain file access.