After export and when I open the CSV up, you'll notice column L formats only some of the dates properly. This happend on a couple other date columns as well. Is there anything I can do with PHP to ensure all dates are returned properly? Below id my function:
public function formatDateCI($date) {
    // If Birthdate Column
    if(strlen($date) == 10){
        $date = explode('-',$date);
        $m = $date[0];
        $d = $date[1];
        $Y = $date[2];
        $date = $Y.'-'.$m.'-'.$d;
    }
    $date = new DateTime($date);
    // Final Format 1983-24-12 00:00:00
    return date_format($date, 'Y-d-m H:i:s');
}

 
     
    