I need to format cell D1 to have the fill color be red if any cell in D2:D21 is blank. I've tried =VLOOKUP("", $D$2:$D$21, 1, FALSE) but that returns #N/A (there is one blank cell in the range at the moment). Can anyone help me with this? I really don't want to use =OR($D$2="", $D$3="", ...$D$21="") if I can avoid it.