It looks like the website for this is down at the moment but when it comes
follow this link and you are saved.

http://www.mcgimpsey.com/excel/removepwords.html

" wrote:

I have a protected workbook. I had fixed a password to ensure sheet
functions protection. One of the sheet's password has been changed, is
there anyway I can recover that ? I have tried using available
software, but they are not for free for longer passwords. My password
was all english 11 letters. I am sure, someone used the password,
which I made known to few poeple, and while protecting it again, there
is some slipping here and there.
Can anyone suggest something ?