UPDATE 1-UK's Xchanging says receives takeover proposal from CSC
November 12, 2015 at 11:23 AM EST
Nov 12 (Reuters) - Outsourcing company Xchanging Plc , which has already accepted a takeover offer from Capita Plc, has received a proposal from U.S.-based Computer Sciences Corp that values the company at about 421 million pounds ($640 million).