Using Excel as a web page
 

I have a worksheet that is used as an input/output form over a network. Part
numbers are typed in and prices are shown. Calculations are done in a hidden
tab and use a database in another hidden tab. Is there a way to set up excel
as an interactive web page so the user will not have access to the other tabs
in the sheet? Protecting the tabs alone won't work because they can still
save the file to disk. I would like to use this as a web page over an
intranet.