Hi,

I need to set up an excel spreadsheet with let's say 4 columns;
A1,B1,C1,D1.
The user cannot enter data into the any column unless all the previous
columns are completed.
They should be prevented from doing so and an error msg should appear
warning them.
Therefore it's a sequential flow - A first then B then C etc.

I hope someone can help me!!
Thanks in Advance
Carol