Using the link I gave you leads you to a wealth of password information. JE
also offers you an AllInternalPasswords macro which you can copy/paste into
your workbook.
If you are not familiar with macros, you might start at David McRitchie's
site notes:
Last. but by no means least, at the original link, JE provides an
all-singing-all-dancing workbook download which requires little more than
pressing a button to remove the worksheet passwords.