How to retrive password protected worksheet but forgot password?

[Laurie]

I password protected an Excel spreadsheet and now can't remember the
password. Is there any way that I can gain access to my worksheet?

 

[JLatham]

There are tons of FREE good Excel password 'cracking' tools. Your favorite
search engine should get about a gazillion hits on a phrase like "crack excel
password" or "excel password cracker".

A good one that many report great success with can be found at:
http://www.straxx.com/excel/password.html