Rafi, since this is so much later, I hope you have already figured out how to
enable what you are attempting. If not, see the following.
Protecting a worksheet doesn't have to protect all cells from being used.
There has to be protection for individual cells for the worksheet protection
takes effect.
You could always select columns A through U (click column header "A", make
sure column U is viewable, hold Shift and click "U") > Format Cells >
Protection > uncheck the check-box.
Now protect the worksheet, making sure column insertion and deletion are not
available for users, then save it.
--
Brad E.
"Rafi" wrote:
> How do I prevent users from inserting columns without locking the worksheet?
> The user has to insert data in columns A:U however, I need to prevent them
> from inserting columns anywhere between column A and column U
>
> Thanks
>
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