title: How to automatically insert a blank row after a group of data
body: <p>I have created a sample table below that is similar-enough to my table in excel that it should serve to illustrate the question. I want to simply add a row after each distinct datum in column1 (simplest way, using excel, thanks).</p>
  
  <p>_</p>
  
  <h2>CURRENT TABLE:</h2>
  
  <pre><code>column1   |   column2   |  column3
  ----------------------------------
    A       |     small   |  blue
    A       |     small   |  orange
    A       |     small   |  yellow
    B       |     med     |  yellow
    B       |     med     |  blue
    C       |     large   |  green
    D       |     large   |  green
    D       |     small   |  pink
  </code></pre>
  
  <p>_</p>
  
  <h2>DESIRED TABLE</h2>
  
  <p><strong>Note:</strong> the blank row after each distinct column1</p>
  
  <pre><code>column1   |   column2   |  column3
  ----------------------------------
    A       |     small   |  blue
    A       |     small   |  orange
    A       |     small   |  yellow
  
    B       |     med     |  yellow
    B       |     med     |  blue
  
    C       |     large   |  green
  
    D       |     large   |  green
    D       |     small   |  pink
  </code></pre>