I have several excel workbooks with sheets where I need three levels of
security
1. The spreedsheet should be protected unless the user knows the password
for turning protection of.
2. Certain cells should be protected unless the user knows the password for
turning protection of (different users and password than in no. 1)
3. Certain cells should be open for all users that are given access to the
spreedsheet.

I can not use network security since this spreedsheets should be distributed
outside our company by e-mail. Level 1 is administrated by me, level 2 by
appr. 40 collegues in separate spreedseets, and then level three is done
externally by e-mail distribution before the spreedsheet is returned to us
for consolidation.

I know how to implement level 1 and 3, but I have not found any solution for
level 2.
Does anyone know how I implement this i excel 2002?