[AccessD] Freeze Panes

Dear List:
 
I am trying to do a Freeze Panes on an Excel spreadsheet I create in an
access app.  But I can't seem to get the code right.  I'm using:
 
    objXLS.Range("B2").Select
    objXLS.ActiveWindow.FreezePanes = True

but the compiler doesn't like ActiveWindow, says Method or Data Member not
found.
 
There's a bunch of other formatting that's working OK.  Mostly cribbed from
recording macros in Excel.
 
Does anyone know offhand the correct syntax for freezing the panes?
 
MTIA
 
Rocky