I need some advice. I have a customer that uses an excel spreadsheet
to figure wealth and other money related items. Anyhow it is a large
formula that he wants to lease out to companies with a year lease.

After a year he wants it to expire and then the company would have to
contact and pay for another year subscription. Is there a way to lock
an xls to 365 days then have some sort of code / password to give them
for another years use?


Email me at

Thanks All