FILE - This March 21, 2011, file photo shows signage at ConAgra Foods' world headquarters in Omaha, Neb. ConAgra Foods Inc. on Tuesday, June 30, 2015 said it plans to sell its faltering business that makes store-brand food just two years after spending $5 billion to beef it up by buying the private-label foodmaker Ralcorp. (AP Photo/Nati Harnik, File)