Hi,
You can protect with a password the worksheet, however it can be easily
bread with some of the programs available in the market

if this helps please say yes, thanks

"Boboluis" wrote:

Document is emailed from party A, to party B and then to party C (me). I want
to insure that party B is not changing anything in the document prior to
sending to party C. Is there anything that party A can do to insure that
party B can not make any changes.

Thank You.