title: SUMPRODUCT vs SUMIFS
body: <p>I'm trying to make an in-company guide to Excel (we're a small non-profit and sorely need some sort of baseline guide). However, I've gotten stuck trying to explain the differences between SUMPRODUCT and SUMIFS. </p>
  
  <p>My understanding is that SUMPRODUCT was used before Excel 2007 as a way to have multiple SUMIF criteria (among other things). Now that SUMIFS is available, is there any difference in the capacity of both formulas? </p>
  
  <p>I've looked around a bit and found that SUMIFS tends to be faster, but that was it... Any insights and/or reading material is appreciated!</p>