(C#) ASP.Net Excel & EPPlus Convert Excel DataTable

       protected void Page_Load(object sender, EventArgs e)
        {

            FileInfo excel = new FileInfo(Server.MapPath(@"Xls/myData.xlsx"));
            using (var package = new ExcelPackage(excel))
            {
                var workbook = package.Workbook;

                //*** Sheet 1
                var worksheet = workbook.Worksheets.First();

                //*** DataTable & DataSource
                DataTable dt = ConvertToDataTable(worksheet);

                this.myGridView.DataSource = dt;
                this.myGridView.DataBind();
            }

        }

        private DataTable ConvertToDataTable(ExcelWorksheet oSheet)
        {
            int totalRows = oSheet.Dimension.End.Row;
            int totalCols = oSheet.Dimension.End.Column;
            DataTable dt = new DataTable(oSheet.Name);
            DataRow dr = null;
            for (int i = 1; i <= totalRows; i++)
            {
                if (i > 1) dr = dt.Rows.Add();
                for (int j = 1; j <= totalCols; j++)
                {
                    if (i == 1)
                        dt.Columns.Add(oSheet.Cells[i, j].Value.ToString());
                    else
                        dr[j - 1] = oSheet.Cells[i, j].Value.ToString();
                }
            }
            return dt;
        }