Creates the required ArchivedOutbound entry with the file specified
        at `filename`

def create_archived_outbound(self, date, filename):
        """
        Creates the required ArchivedOutbound entry with the file specified
        at `filename`
        """
        with open(filename, "rb") as f:
            f = File(f)
            ArchivedOutbounds.objects.create(date=date, archive=f)