If the judgment is rendered in favor of the person alleged to be entitled, he shall be entitled, after taking the oath of office and executing such official bond as may be required by law, to take upon himself the execution of the office. It is his duty, immediately  thereafter, to demand of the defendant in the action all the books and papers in his custody, or within his power, belonging to the office from which he has been excluded. (C.C.P., ss. 371, 373; Code, ss. 611, 613; Rev., ss. 843, 844; C.S., s. 885.)