Here's what I had, and it just quit working.
Code:
Sub Main()
Dim xl as Object,wb as Object
Set xl = CreateObject("Excel.Application")
set wb = xl.Workbooks.Open("c:\_excel ccmbalance.xls")
xl.visible = true
wb.SaveAs filename:=Format(Date, "mm.dd.yy") & wb.FullName & ".xls"
End Sub