title: VBA Excel loop through all days in a year
body: <p>In Excel VBA:</p>
  
  <p>How do I loop through all days in a given date range?</p>
  
  <p>'2013-01-01' to '2013-01-03' should give:</p>
  
  <pre><code>2013-01-01
  2013-01-02
  2013-01-03
  </code></pre>