how to shade alternate rows?

[bill <bill samerica com>]

Hi again everyone,

 

I've run into another issue which doesn't seem to be covered in the manual. I need to shade odd-numbered rows a light gray for easier viewing. I assume this should be done with format-cells-conditional formatting-background? That's as far as I've gotten. To be honest i don't understand how to use the expressions "Cell contains an error value," etc. Any help much appreciated!

 

bill