title: Excel failing at String VLOOKUP
body: <p>I have a table that looks like this</p>
  
  <pre><code>   B   C
  43 XS  6
  44 S   11
  45 M   16
  46 L   21
  47 XL  26
  48 XXL 31
  </code></pre>
  
  <p>I've written the formula:</p>
  
  <pre><code>`VLOOKUP("S",B43:C48,2)`
  </code></pre>
  
  <p>It's returning a value of 21.
  WHY?! It should be returning 11!</p>
  
  <p><strong>update</strong> I reproduced this exact error in a different table. <code>VLOOKUP</code> works when the search value is a number, but consistently fails when I use strings.</p>