Spain’s Caixabank will legally challenge a Spanish windfall tax, Chief Executive Officer Gonzalo Gortazar told a financial event in Madrid on Tuesday as another lender, Sabadell, said it had filed an appeal. Caixabank joins other lenders and utilities in objecting to the temporary levies on banks and energy companies approved by Spain in December, intended to raise 6 billion euros ($6.39 billion) by 2024 to fund measures to ease the cost of living.