(C#) ASP.Net Excel & EPPlus Generate Excel file

            using (var package = new ExcelPackage())
            {
                var workbook = package.Workbook;

                //*** Sheet 1
                var worksheet = workbook.Worksheets.Add("Sheet1");
                worksheet.Cells["A1"].Value = "ThaiCreate.Com";
                worksheet.Cells["B2"].Value = "2017";

                package.SaveAs(new FileInfo(Server.MapPath(@"Xls/myExcel.xlsx")));
            }

            using (var package = new ExcelPackage())
            {
                var workbook = package.Workbook;

                //*** Sheet 1
                var worksheet = workbook.Worksheets.Add("Sheet1");
                worksheet.Cells["A1"].Value = "ThaiCreate.Com";
                worksheet.Cells["B2"].Value = "2017";

                //*** Sheet 2
                var worksheet2 = workbook.Worksheets.Add("Sheet2");
                worksheet2.Cells["C2"].Value = "ThaiCreate.Com";
                worksheet2.Cells["D3"].Value = "2017";

                package.SaveAs(new FileInfo(Server.MapPath(@"Xls/myExcel.xlsx")));
            }