PHPExcel：细胞的背景颜色正在发生变化

I have an Excel template that I need to fill out in php script. Table's headers are highlighted with different colours:

In php script I open template, add some data and save file:

 //Template from VitalSource
    $template = APPLICATION_PATH.'/../public/VitalSourceTemplate.xlsx';

    // Read the file
    $fileType = PHPExcel_IOFactory::identify($template);
    $objReader = PHPExcel_IOFactory::createReader($fileType);
    $objPHPExcel = $objReader->load($template);


    $objPHPExcel->setActiveSheetIndex(0);
    $row = 4;

    /*
       Add new rows to the Excel file
    */

// Write the file
    $objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, $fileType);
    $objWriter->save('testVS.xlsx');

Data is here, the only problem is that header colours are changing:

What can be the problem? How to leave original style of cells?

UPD

Here is a dropbox link to the template file - dropbox

UPD 2

When I convert template file from xlsx to xls everything works as expected.

Here is a link to the xlsx template - link

Here is a link to the xls template - link

Does PHPExcel process xlsx and xls colors differently? At other hand I use Numbers on Mac to open Excel files and converting them to xlsx and xls - probably there is some bug with Numbers. Appreciate any help and information.

You can copy and paste but if ypou paste in other book you have to do the following:

Paste special --> Keep original theme