How do I Load an excel file to the PrintPreviewDialog?

Imports Excel = Microsoft.Office.Interop.Excel
    Private Sub btnPrintPreview_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnPrintPreview.Click
        Dim xlApp As Excel.Application
        Dim xlWorkBook As Excel.Workbook


        xlApp = New Excel.ApplicationClass
        xlWorkBook = xlApp.Workbooks.Open(Application.StartupPath & "report_summary.xlsx")

        MyPrintPreviewDialog.Document = xlWorkBook
        If MyPrintPreviewDialog.ShowDialog() = DialogResult.OK Then
            xlWorkBook.Close()
            xlApp.Quit()
        End If
    End Sub

Error states that excel cannot be converted to .Document.

I've tried searching for it on the internet and I've came up with nothing specific to my problem.

Note that I want an excel file to show onto the PrintPreviewDialog and NOT use the excel application's built in printpreview using xlWorkbook.printpreview

Does any one have at least a site or a link to a tutorial of some sort relevant to my query?