Learn to use the VLOOKUP function for Excel in 30 seconds or less!
This tutorial includes seaching through a list of values for an exact match using Vlookup as well as searching through a sorted list of numbers to return either an exact match or the next lowest value.
=VLOOKUP("Red",B5:D8,3,FALSE)
(Download the file for this tutorial to get the lookup data as well.)
=VLOOKUP(85,B15:C18,2,TRUE)
(Download the file for this tutorial to get the lookup data as well.)
Vlookup Excel (microsoft's page)