A1 - "A"
B1 - "B"
C1 - "C"
A2 - 3
B2 - 2
C2 - 1

D2= is returning the MAX in the A2:C2 array and returning 3

E2 is my LOOKUP function. =LOOKUP(D2,A2:C2,A1:C1)
Which I thought was saying, look in the array a2:c2, find the value in
d2(3), and return the corresponding value in the a1:c1 array, which would be
"A".
I would be expecting it to return a value of "A" but it's returning "C"
instead.

I've tried VLOOKUP and HLOOKUP and haven't be able to get that to work with
this either. Any ideas what I'm doing wrong?