Thank you #NAME? =SUMIF(B5:B56,"<1E100") works, problem solved.
Peter =SUM(IF(ISNUMBER(A1:A10),A1:A10)) still not able to get this to work for some reason. Have tried numerous times. I put in the formula =SUM(IF(ISNUMBER(A1:A10),A1:A10)) selected Ctrl Shift Enter like you said and it changes to {=SUM(IF(ISNUMBER(A1:A10),A1:A10))} but the total is always 0.
Thanks for the suggestion, I'll keep this one in mind for future problems.