title: How do I poping up the Save or Open File VB.Net
body: <p>My goal is to attempt that popping up the option to save or open the file that already been created. </p>
  
  <p>Here's my code : </p>
  
  <pre><code> Dim xlApp As Excel.Application
          Dim xlWorkBook As Excel.Workbook
          Dim xlWorkSheet As Excel.Worksheet
          Dim misValue As Object = System.Reflection.Missing.Value
  
          xlApp = New Excel.ApplicationClass
          xlWorkBook = xlApp.Workbooks.Add(misValue)
          xlWorkSheet = CType(xlWorkBook.Sheets("sheet1"), Excel.Worksheet)
          xlWorkSheet.Cells(1, 1) = "PERIOD"
          xlWorkSheet.Cells(1, 2) = "PARTS_NO_FG"
          xlWorkSheet.Cells(1, 3) = "QTY_ASSY"
          xlWorkSheet.Cells(1, 4) = "COSTING1"
  
          xlWorkSheet.Cells(2, 1) = "201212"
          xlWorkSheet.Cells(2, 2) = "01125E6041"
          xlWorkSheet.Cells(2, 3) = "5"
          xlWorkSheet.Cells(2, 4) = "0"
  
  
          xlWorkSheet.SaveAs("D:\TemplateAssy.xlsx")
  
          xlWorkBook.Close()
          xlApp.Quit()
          releaseObject(xlApp)
          releaseObject(xlWorkBook)
          releaseObject(xlWorkSheet)
  </code></pre>
  
  <p>Then how to popping up when I execute this program VB.NET thanks</p>