For unknown reasons the row and column numbering has changed from say "C7"
and "D10" to "R7C3" and "R10C4", presumanly "R" menas Row and "C" means
Column. When I want to say multiply C7 by 10 with the result reporting in
cell D10, the cell formula becomes: 10*R[-3]C[-1].

I don't care for this system, and I just want to get back to my old system.
How do I do that?

Thank you

Willem Duyvesteyn