If you're using Office 2003, DRM can do this. Otherwise, you'd need to use
either NTFS or worksheet protection to prevent alteration. I don't think
you can prevent printing.
ok THIS IS THE SOLUTION
Excel sheet will be saved as HTML or pdf
I make a policy on a OU with absolute no rights for the
user only to view the sheets.
put the particular users in this OU and it works fine
thx chaps you really put me in the right direction