You are reading a single comment by @jaw and its replies.
Click here to read the full conversation.
jaw-
Excel 2016 is tough.
There is this https://hashcat.net/hashcat/ which runs locally (no admin rights from what I can remember but not 100%) and can brute force passwords.
It isn't easy to use though and, unless the password is really short or you have an idea of the form it will take then it can take a long, long time. I left it running on a file for a week and it still hadn't solved it.
aggi
Depends on the version of excel that it was protected under (assuming its an excel file of course).
Old versions, it's trivial. Anything else, and you're going to struggle.
I'd also be amazed if your company security policy allowed for files to be uploaded out of the company for any purpose, let alon cracking a PW.