How can I protect my Excel workbook against copying ?

[Guest]

I have protected my worksheet with a password on the sheets, and saved it as
read only. Still anyone can copy the data from the sheets to another blanc
sheet. What do I have to do to protect my worksheet against beeing copied ?

 

[Dave Peterson]

You can lock the formula cells on the worksheet and when they're copied and
pasted, the copier will see values--not formulas.

But worksheet protection is really simple to break. There's really nothing you
can do to stop copy|pasting of your data.