Hi Kenneth,
You can create a new open action on the Excel VBO and use the below code. Hopefully this will help.
Dim wb as Object = GetInstance(handle)
wb.DisplayAlerts = False
wb.Workbooks.Open(filename)
wb.DisplayAlerts = True
Make sure you have this as a backup, as when you upgrade your BP, these will be replaced with accompanying VBOs
Regards,
Hari