title: How do I convert a string of hex into ASCII using elisp?
body: <p>Today I received a reply to one of my emails in the form of a string of hex bytes:</p>
  
  <pre><code>"686170707920333974682068617665206120676f6f64206f6e6521"
  </code></pre>
  
  <p>And I was thinking of the most efficient clean way to convert the string into it's ASCII equivalent. I'll add my answer to the question but I didn't feel it was as elegant as it could have been.</p>