HP Inc said on Sunday it was open to exploring a bid for U.S. printer maker Xerox Corp after rebuffing a $33.5 billion cash-and-stock acquisition offer from the latter as “significantly” undervaluing the personal computer maker. Xerox made the offer for HP, a company more than three times its size, on Nov. 5, after it resolved a dispute with its joint venture partner Fujifilm Holdings Corp that represented billions of dollars in potential liabilities. Responding to Xerox’s offer on Sunday, HP said in a statement that it would saddle the combined company with “outsized debt” and was not in the best interest of its shareholders.