this may help you
just rename MyFile to the file you want to open
it works in Word 2000
Sub OpenExcelFile()
Dim Chan
Dim MyFile
MyFile = "C:\MyFolder\FILE_NAME_HERE.xls"
Chan = DDEInitiate(App:="Excel", Topic:="System")
DDEExecute Channel:=Chan, Command:="[OPEN(" & Chr(34) _
& MyFile & Chr(34) & ")]"
DDETerminate Channel:=Chan
End Sub
Create a Hyperlink to the file in Word (NT)
DDEExecute Channel:=Chan, Command:="[OPEN(" & Chr(34) _ & MyFile & Chr(34) & ")]"
Where should I put this code? Looks like this is exactly what I'm looking for, but I'm not sure what file to add this to or create a new file and put it in a certain directory. Also, do you know of a way to make this rule apply to ALL excel files?