[('Field name 1', 'Field name 2', 'Field name 3', 'Field name 4'), (
    'Value 1', 'Value 2', 'Value 3', 'Value 4'), ('Value 1',
    'This is an longvalue that extends over multiplelines', 'Value 3',
    'Value 4')]
Best way to split every nth string element and merge into array?