title: How to export Chart created in EPPlus to Image file
body: <p>I have tried this;</p>
  
  <pre><code>var excelPicture = sheet.Drawings[0] as OfficeOpenXml.Drawing.ExcelPicture;
  var img = excelPicture.Image;
  </code></pre>
  
  <p>However the excelPicture variable become null. How can I create image file from ExcelDrawing??</p>