Outsourcing company Xchanging Plc said it did not expect a superior cash offer from Ebix Inc and urged shareholders to accept a bid from U.S.-based Computer Sciences Corp. Insurance software company Ebix had in November made a 450 million pound takeover approach for Xchanging, which offers services ranging from back-office invoice processing to insurance claims settlement. Ebix has not confirmed that it will be able to make a superior offer or provided evidence that it would be able to finance such an offer, Xchanging said.