title: creating chart in an excel spreadsheet using NPOI
body: <p>I know that my question will be very similar to other ones already asked on SO but as I can't find a satisfying answer, I try my luck !</p>
  
  <p>Does so know whether it's possible or not to generate charts in an Excel spreadsheet using the <a href="http://npoi.codeplex.com/" rel="noreferrer">NPOI</a> library.</p>
  
  <p>I have read that <a href="http://www.leniel.net/2009/10/npoi-with-excel-table-and-dynamic-chart.html" rel="noreferrer">blog</a> but it gives an example where there is already an existing template. Isn't it possible "from scratch" ?</p>