title: ClosedXML - Add a new row without overwrite data (first line)
body: <p>I'm trying to add an empty row before filling my excel document.</p>
  
  <pre><code>using (DataTable dt = new DataTable())
  {
      sda.Fill(dt);
  
      using (XLWorkbook wb = new XLWorkbook())
      {
          var ws = wb.Worksheets.Add(dt, "Report");
          var listOfStrings = new List&lt;String&gt;();
          ws.Cell(1, 6).Value = "Service";
          ws.Cell(1, 15).Value = "Invoice";
  
          ws.Range("A1:L1").Style.Fill.BackgroundColor = XLColor.DarkBlue;
          ws.Range("M1:Q1").Style.Fill.BackgroundColor = XLColor.DarkCandyAppleRed;
          ws.Range("M2:Q2").Style.Fill.BackgroundColor = XLColor.Red;
  
          Response.Clear();
          Response.Buffer = true;
          Response.Charset = "";
          Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
          Response.AddHeader("content-disposition", "attachment;filename=Report.xlsx");
  
          using (MemoryStream MyMemoryStream = new MemoryStream())
          {
              wb.SaveAs(MyMemoryStream);
              MyMemoryStream.WriteTo(Response.OutputStream);
              Response.Flush();
              Response.End();
          }
      }
  }
  </code></pre>
  
  <p>I only need to make the first row empty and then fill the document with my data.
  But all time I'm overwriting the document.</p>