On Thursday, 24 October 2019 at 16:20:50 UTC, jmh530 wrote:
If they are only opening it in Excel, then you can lock cells.
You should be able to do that with VBA.
At least I know it works with xlsx files. Not sure on csv now
that I think on it.
Hmm, I need to check whether I can do that on LibreOffice Calc. I
do not to rely on Ms Excel -in part because I don't have one
myself! But if the answer is positive, it might be worth
considering. I should be able to make an easy-to-use excel-to-csv
translator using Atilas Excel utilites without too much effort.