I know how to remove the password protection from an excel document, but I was wondering if there was a method to recover the original password. I have a document encrypted with a 64 character password and I've been searching for ways to recover it but have found none.
I would recreate the content found here but there really is no need because it is formatted so nicely. Basically, because the password is stored with the document, you can find the password hash pretty easily in a hex editor. From there, you can simply brute force it.