Ho to export data from Repeater to Excel file.

You need to add this in your code and i hope you will get your solution.

Response.Clear()
        Response.Buffer = True

        Response.AddHeader("content-disposition", "attachment;filename=Download History(" + Date.Now + ").xls")

        Response.Charset = ""
        Me.EnableViewState = False
        Response.ContentType = "application/vnd.ms-excel"
        Dim sw As New StringWriter()
        Dim hw As New HtmlTextWriter(sw)
'Add all data in Repeater.
        Repeater1.RenderControl(hw)
        Response.Output.Write(sw.ToString())
        Response.Flush()
        Response.[End]()