This only happends if its a simple array, but if you have something like name: 'Robert', lastname: 'Miller', family: null, location: [{city: 'A'},

This only happends if its a simple array, but if you have something like name: 'Robert', lastname: 'Miller', family: null, location: [{city: 'A'}, {city: 'B'}] you would get 2 csv lines one with location.city A and other with B