Is Excel spreadsheet loaded into Web Browser control at this point?

>In an old program I have the code
>
>With thisform.OleControl1
> .Navigate2('file://c:\global\rrdtest.xls')
> Do While .ReadyState # 4 && Wait for ready state
> EndDo
>endwith
>
>oXLS = thisform.OleControl1.object.document
>oExcel = oXLS.Application
>
>I get the message oXlS is not an object
>
>Any ideas?