Using excel 2007
My formula is this: "=IF(I3="","",IF(ISERROR(MATCH(I3&L3,Lists!S:S,0)),"",VLOOKUP(I3&L3,Lists!S:T,2,FALSE)))"
Column S in Lists is formatted as general, column T is date. The format of the output (formula) cell is date. I3 is formatted as general, L3 date.
Let's say I3 is...