When I protect a worksheet in Excel, it locks those cells, but when I have to
open it up in a different office program such as OpenOffice or QuattroPro,
the password protection is automatically removed. The cells are still locked,
but can be easily unlocked, as the password is removed and one must only tell
the program to remove the sheet protection. No password prompt comes up. This
is very inconvenient as one could take a protected excel file, open it up in
QuattroPro, remove the protection, and open it back up in Excel, ready for
editing.

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