title: how to sum values in a table with multiple criterias
body: <p>I need your help with an excel formula. I want to sum values of a table based on criterias in the first row and the first column </p>
  
  <p><a href="https://i.stack.imgur.com/KZqZq.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/KZqZq.png" alt="as shown in this image"></a>
  <br/></p>
  
  <p><strong>e.g. row-criteria="z" and column-criteria="1": for those criterias the solution is 3.69 (1.06+1.38+1.25=3.69)</strong>
  <br/>
  SUMPRODUCT does not work for me. </p>