I don’t have it in front of me, but I’m seeing 0 answers so far, so maybe get you started. I think the easiest way to do this is with “conditional formatting”, which is pretty simple to use, but I’m not finding a handy link right away. Basically you define a condition (so you’d need a formula to find the word “no”) and a format (red text) and go from there. Finding “no” could be as simple as =ISNUMBER(SEARCH(‘no’,<your cell>)) but that will find things like “north” and “cannot” as well, so there’s probably a better option out there to handle case (to find “No” and “NO” as well) and whitespace (require “no” to be the complete cell). Hope it helps get you going.