'First Create a crystal Report.
' Drag and drop the Crystal Report Viewer in the form
' copy this code on top of the code
Imports System.Data
Imports System.Data.SqlClient
Imports CrystalDecisions.CrystalReports.Engine
Imports CrystalDecisions.Shared
							
Private myDS As New Dataset1() ' Dataset you created.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim rpt As New CrystalReport1() 'The report you created.
        Dim myConnection As SqlConnection
        Dim MyCommand As New SqlCommand()
        Dim myDA As New SqlDataAdapter()

        Try

            myConnection = New SqlConnection("Data Source=localhost;Integrated Security=SSPI;" & _
                                             "Initial Catalog=pubs;")
            MyCommand.Connection = myConnection
            MyCommand.CommandText = "SELECT * FROM authors"
            MyCommand.CommandType = CommandType.Text
            myDA.SelectCommand = MyCommand

            myDA.Fill(myDS, "authors")
            rpt.SetDataSource(myDS)
            CrystalReportViewer1.ReportSource = rpt

        Catch Excep As Exception
            MessageBox.Show(Excep.Message, "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)
        End Try

    End Sub

   Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        'this is the code which converts crystalreport to Excel document
        Dim reportExcel As New CrystalReport1() ' Report Name 
        Dim strExportFile As String = "d:\Test.xls"
        reportExcel.ExportOptions.ExportDestinationType = ExportDestinationType.DiskFile
        reportExcel.ExportOptions.ExportFormatType = ExportFormatType.Excel
        Dim objOptions As DiskFileDestinationOptions = New DiskFileDestinationOptions()
        objOptions.DiskFileName = strExportFile
        reportExcel.ExportOptions.DestinationOptions = objOptions
        reportExcel.SetDataSource(myDS)
        reportExcel.Export()
        objOptions = Nothing
        reportExcel = Nothing

    End Sub