ASP.Net Excel & EPPlus Generate Excel file

        Using package = New ExcelPackage()
            Dim workbook = package.Workbook

            '*** Sheet 1
            Dim 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")))
        End Using

Using package = New ExcelPackage()
	Dim workbook = package.Workbook

	'*** Sheet 1
	Dim worksheet = workbook.Worksheets.Add("Sheet1")
	worksheet.Cells("A1").Value = "ThaiCreate.Com"
	worksheet.Cells("B2").Value = "2017"

	'*** Sheet 2
	Dim 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")))
End Using