excel encryption

5 pts.
Tags:
Encryption
Microsoft Excel
I wish to encrypt and send excel spreadsheets to customers where they can modify some input data and calculate but not read formulars or change the spreadsheet. I want a form of security that is better that the standard microsoft encryption that cannot easily be broken by password crackers.

Software/Hardware used:
MS excel
ASKED: March 27, 2010  10:22 AM
UPDATED: March 31, 2010  8:22 AM

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This isn’t possible. In order for your customers to use the spreadsheet for calculation, the computer will need access to the formulas. If the computer has access to the formulas, so do your users.

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