22 Jan 2013 Video 00002 SUMPRODUCT_function Part1 BY Kevin Lehrbass POSTED IN Formulas WITH 0 COMMENTS PERMALINK STANDARD POST TYPE Many people have asked me about Excel’s sumproduct function. It is one of Excel’s most versatile and useful functions. Here is an introduction video. Watch my YouTube video Download my Excel file Download here or via my OneDrive (file 00002) Subscribe to my YouTube channel and learn more! See my free templates here!