microsoft excell programming
 

Dear Sir/madam,

I got new assignment to enhance the calculated program
spead sheet developed by previous programmers using Excell
macro programming through VBA Editor. And this Excell
spread sheet will be used by different users to get right
output by giving various inputs based on the priviledges
access varies. At the same time they should not allow to
save the file or copy on to disk, not viewing source code.

Requirements
1. hidding the tool bar on the spread sheet after
calculations performed. like Read acces only.
2.not viewing source code , not editing, not copy and no
alterations .
3. what is the best security for this spread sheet from
using different users ?

please help me out to provide best ideas and best methods
to complete this work.

Thank You,
kim.