New Post: Data in column float to the right side

Hello everyone,

yesterday I downloaded PHPExcel for the first time and made the first steps.
I have a Database with persons in it. Every Person has a name, class and code. I want to print this data into a .xlsx file.

Pretty much everything works fine, but somehow the data in a few columns floats to the right side.
(I'm using LibreOffice to open the file)



This is my code:

<?
//..
// Fetching data from Database and storing it in variable "raw"
// Then continue to create the document

header('Content-type: application/vnd.ms-excel');
header('Content-Disposition: attachment; filename="codes_' . $pid . '.xlsx"');
header('Pragma: no-cache');

include '../PHPExcel/Classes/PHPExcel.php';
include '../PHPExcel/Classes/PHPExcel/Writer/Excel2007.php';

$excel = new PHPExcel();



$excel->setActiveSheetIndex(0);
$excel->getActiveSheet()->getColumnDimension('A')->setWidth(50);
$excel->getActiveSheet()->getColumnDimension('B')->setWidth(20);
$excel->getActiveSheet()->getColumnDimension('C')->setWidth(20);
$col = 1;
$class = $raw[0][1].$raw[0][2];

foreach ($raw as $val) {
    
    if($val[1].$val[2] != $class)
    {
        $class = $val[1].$val[2];
        $col = $col + 3;
    }
    
    $excel->getActiveSheet()->SetCellValue('A'.strval($col), $val[0]);
    $excel->getActiveSheet()->SetCellValue('B'.strval($col), $val[1].$val[2]);
    $excel->getActiveSheet()->SetCellValue('C'.strval($col), $val[3]);
    
    $col++;
}

$objWriter = new PHPExcel_Writer_Excel2007($excel);
$objWriter->save("php://output");
?>

I hope someone can help me.

Thank you very much!