The code can be modified to produce letters (e.g., concatenate "M" with
the sequential number).

That's the easiest method I know. I don't deliberately suggest
harder/more complicated solutions...

In article ,
Connie wrote:

Thanks for the link... I am studying it... but, is there an easier way to
automate incremental updates of a cell (especially because it includes
letters, and the code looks like it requires a number format)?