I need to average this range assuming all cells have a value 0. What's the
correct function to
use???(N13+X13+AH13+AR13+BB13+BL13+BV13+CF13+CP13+ CZ13+DJ13+DT13+ED13+EN13+EX13+FH13+FR13+GB13+GL13+ GV13+HF13+HP13+HZ13+IJ13)