title: How to freeze headers and a set of columns using PHPExcel
body: <p>I want to freeze my page headers and columns like so:</p>
  
  <p><img src="https://i.stack.imgur.com/hhD3K.png" alt="enter image description here"></p>
  
  <p>I can freeze my headers absolutely fine and dandy: </p>
  
  <pre><code>    $highestRowCount = $sheet-&gt;getHighestRow();
      $highestColumnCount = $sheet-&gt;getHighestColumn();
  
      $sheet-&gt;freezePane( "{$highestColumnCount}2" );
  </code></pre>
  
  <p>But when I then add another freeze on the columns:</p>
  
  <pre><code>    $sheet-&gt;freezePane( "D{$highestRowCount}" );
  </code></pre>
  
  <p>It breaks excels ability to scroll...</p>
  
  <p>How might I go about doing this?</p>