title: phpExcel: getCalculatedValue() returns #VALUE
body: <p>Can someone help me with phpExcel Code:</p>
  
  <p>This Codes:</p>
  
  <pre><code>$objPHPExcel-&gt;getActiveSheet()-&gt;getCell("AF19")-&gt;getCalculatedValue();
  $objPHPExcel-&gt;getActiveSheet()-&gt;getCell("AF19")-&gt;getFormattedValue();
  $objPHPExcel-&gt;getActiveSheet()-&gt;getCell("AF19")-&gt;getValue();
  </code></pre>
  
  <p>Returns:</p>
  
  <pre><code>#VALUE!
  #VALUE!
  =AE19*I19
  </code></pre>
  
  <p>Thank you in advance! :)</p>