Ray
You cannot change the A, B, C headers and 1,2,3 headers.
A workaround is to use Row 1 for a titles row then select A2 and Window>Freeze
Panes so that Row 1 with the titles remains in view when you scroll.
Select B2 instead if you also want Column A to remain in view.
You can turn off the A, B, C, etc. by going to Tools>Options>View and uncheck
"row and column headers".
Gord Dibben Excel MVP