A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
You may use either of below as an array formula (CTRL+SHIFT+ENTER):
=MATCH(9.99999999999999E+307,IF($AH$3:$BH$3>0,$AH$3:$BH$3))+COLUMN($AH$3)-1
or
=MATCH(9.99999999999999E+307,IF(3:3>0,3:3))
The above return the last column Number in row 3 with a value > 0.
Regards,
Amit Tandon