Execute rest of the code after Response.End() Alternative?

Question

I have following code to generate an excel sheet from the provided datatable and I modified it to generate two excel sheets.

  if (dt.Rows.Count > 0)
                            GenerateExcelSheet(dt);
                        if (dtSplit.Rows.Count > 0)
                            GenerateExcelSheet(dtSplit);



private void GenerateExcelSheet(DataTable dt)
        {
            string fileName = string.Format("Foodlist-{0}.xls", DateTime.Now.ToString("ddMMMyyyy-hh:mm:tt"));
            Response.ClearContent();
            Response.Buffer = true;
            Response.AddHeader("content-disposition", string.Format("attachment; filename={0}", fileName));
            Response.ContentType = "application/ms-excel";

           //Code
 Response.Write("<table>");

            //My code goes here

            Response.Write("</table>");

            Response.End();
        }

From above code GenerateExcelSheet(dt); is executing and download the file but

if (dtSplit.Rows.Count > 0) and rest of the code is not executing. After research I found that Response.End(); cause to end of the execution the current page. Is there any way to overcome this?