PHPExcel setWidth doesnt work - php

Question

i convert an excel file to HTML Table with PHPExcel
(PHPspreadsheet) with Symfony 2.5
I'm trying to set a filter to only load the range ('A','N') , the first 13 columns. not working..
I'm also trying to set the Width of the 'N' Column. not working..
when i dump the column's width value is correct..
I can increase the columns width but not decrease them..
it looks like the text inside the cell is defining the cell's width automatically..
Here is my controller :
public function showClientAction($client)
{
$excel = glob(''.path.'\\'.path.'\\filename_' .$client.'.{xlsx,xls,xlsm,xlsm.ink}', GLOB_BRACE);
$filterSubset = new \PHPExcel_Reader_DefaultReadFilter(1,1000,range('A','N'));
$objReader = \PHPExcel_IOFactory::createReaderForFile($excel[0]);
$objReader->setReadFilter($filterSubset);
/** Read the list of worksheet names and select the one that we want to load **/
$worksheetList = $objReader->listWorksheetNames($excel[0]);
$sheetname = $worksheetList[0];
/** Advise the Reader of which WorkSheets we want to load **/
$objReader->setLoadSheetsOnly($sheetname);
$objPHPExcel = $objReader->load($excel[0]);
$objPHPExcel->getActiveSheet()->getColumnDimensionByColumn('13')->setAutoSize(false);
$objPHPExcel->getActiveSheet()->getColumnDimensionByColumn('13')->setWidth(2.5);
// OUTPUT is : int (13) applied correctly
var_dump($objPHPExcel->getActiveSheet()->getColumnDimensionByColumn('13'));
$writer = \PHPExcel_IOFactory::createWriter($objPHPExcel, "HTML");
$writer->generateSheetData();
$writer->generateStyles();
return $this->render('SocPerfclientBundle:Default:testexcel.html.twig', array(
'excelHtml'=>$writer,
'stylesExcel'=>$writer,
'client'=>$nom_client
));
}
My filter :
class PHPExcel_Reader_DefaultReadFilter implements PHPExcel_Reader_IReadFilter
{
public $_startRow = 0;
public $_endRow = 0;
public $_columns = array();
/** Get the list of rows and columns to read */
public function __construct($startRow, $endRow, $columns) {
$this->_startRow = $startRow;
$this->_endRow = $endRow;
$this->_columns = $columns;
}
public function readCell($column, $row, $worksheetName = '') {
// Only read the rows and columns that were configured
if ($row >= $this->_startRow && $row <= $this->_endRow) {
if (in_array($column,$this->_columns)) {
return true;
}
}
return false;
}
}
my view :
{{ excelHtml.generateSheetData | raw }}
{{ stylesExcel.generateStyles | raw }}
Here a screenshot html view :
We can see the "RCA" column still having the initial width.. my setWidth isnt applied..
if i change the link by a shorter word like : yes.docx , the column decreases.