From the menu bar, Tools Options, click General, deselect 'R1C1 reference
style' and click OK. (If it's already deselected, try to select, then OK,
then deselect and OK).

"Ray" wrote:

In my worksheet the column title are numbers (1,2,3....) and I would like to
change back to alphabetic (A,B,C...). Can some one help my. Thank you very
much.