I am trying to match to arrays in two different Excel tabs I will make a
sample of each tab.

Tabl

A B C
12 150 Class
10 150 No Class

Tab2
A B C D
12 150 NoClass 350
10 150 NoClass 400

What I am trying to do, is to Match Columns (A,B,C) from Tab1 to Tab2, and
to display the value of Column D. I can get this to work by matching Column A
from Tab1 to Tab2 and displaying Column D, using the Vlookup() function. I
just can't figure out how to much mutiple columns in a row between tabs.
Thanks