Ya está!!
Intenta asi:
Código vb:
Ver originalPrivate Sub cmd_Click()
Set objexcel = New Excel.Application
Set wbCupon = objexcel.Workbooks.Open("D:\Me\Down\New\Exe\Libro1.xls")
j = 1
With objexcel.ActiveSheet
stxt = .Cells(j, 1)
Do While stxt <> ""
cadNFLl = cadNFLl & .Cells(j, 1).Value
j = j + 1
stxt = .Cells(j, 1)
Loop
.Cells(j, 1).Value = cadNFLl
End With
objexcel.Quit
End Sub
Te saldrá un cuadro preguntando si quieres guardar los cambios, dile que si y ya!!