LukaszLapaj/ExcelPasswordCracker — reverse-engineered prompt

Build me a simple tool that can recover the password for an Excel file I own by brute forcing likely passwords. I want it to try letters and numbers based on a character set I choose, use multiple CPU threads so it runs as fast as it reasonably can, and stop as soon as it finds the right password.

Please make it easy to run from the command line. I should be able to point it at an Excel file, choose the characters to test, and set things like minimum and maximum password length. Show live progress so I can see how many attempts it has made and roughly how far along it is. If the password is found, print it clearly and save a decrypted copy of the file if possible.

It would also be really helpful if it could save its place while running and resume later from the last checked position. If there is a simple way to add a basic dictionary mode too, include that. Look up current docs online if you need to.