I want to read the excel file in vb.net

I coded the bellow, but I couldn't get the result I wanted 

Imports Microsoft.Office.Interop.Excel
Imports Excel = Microsoft.Office.Interop.Excel

Public Class Chart
    Inherits System.Web.UI.Page
    Dim app As New Excel.Application
    Dim worksheet As Excel.Worksheet
    Dim workbook As Excel.Workbook
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        workbook = app.Workbooks.Open("E:\Results.xlsx")
        worksheet = workbook.Worksheets("Information")


    End Sub

    Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        TextBox1.Text = worksheet.Cells(1, 1).Value
        TextBox2.Text = worksheet.Cells(1, 2).Value
    End Sub

    Protected Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
        workbook.Save()
        workbook.Close()
        app.Quit()
    End Sub
End Class