Is it possible to use an array around two different index/match calculations?
The formula below does return my data when cell $N$4=2018, but when cell $N$4=2019, I receive #NUM errors.
{=(IF($N$4=2018,(INDEX('[Count Master 2018.xlsx]MASTER'!$A$3:$A$1000,SMALL(IF($N$3='[Count Master...