public JsonResult fetchExcelData()
        {
            FetchData obj = new FetchData();
            DataSet   ds  = obj.ReadExcelFile();
            //var val = ds.Tables[0].Rows[0]["Name"];
            //object op = ds;
            //IEnumerable<DataRow> sequence = null;
            //foreach (DataTable t in ds.Tables){

            //   sequence = t.AsEnumerable();
            //}
            var json = new JavaScriptSerializer().Serialize(getListFromDataSet(ds));

            return(Json(getListFromDataSet(ds), JsonRequestBehavior.AllowGet));
        }