I have a range of cells like this (from a calendar).
1 2
3 4 5 SP4 7 8 9
10 11 12 SP4 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31
I want to add the numeric values from the alphanumeric cells ONLY, i.e. the 2 "SP4" cells, to equal 8. I have tried different array formulas, but can't figure out how to only select the 2 alphanumeric cells and add the numbers. Thanks ahead.