I wish i found this video a month ago. There's so much to learn with excel, I'm just working it out as i go... I've been using it in a limited way for years. I've been setting the sheets to not display zeros globally in program options where it was a problem for me but sometimes seeing a zero is a good thing.
Thank you so much! I was dealing with a super weird issue where my master sheet was performing multiple vlookups on a 2nd worksheet. For some reason, one date column was returning zero, while the other was just returning a blank cell. I wanted a blank cell to return a blank value, but I was getting different results. It made no sense, but the custom format with ;;; was a super easy workaround.