Can anyone suggest a method of entering data into a Microsoft Excel document cell, which then becomes unalterable.
For example, I wish to enter medical information into the excel document, and which becomes unalterable after say 24 hours. I still wish to be able to add addition medical information at a later date to the same document, but the original information in the document must remain unalterable (even with a password) for legal purposes.
Any help will be greatly appreciated.
Thanks in Advance