What do you do if you forget the password to your OpenOffice.org files? The simplest solution is to download OOo Password Cracker, a macro for opening protected documents in any OpenOffice.org application. Using a brute force dictionary attack, OOo Password Cracker provides a slow but reliable method of document recovery. However, the macro requires some preparation if you want to use it effectively.

Source: OpenOffice.org Password Cracker is what you make of it