PHPExcel - saving images while modify spreadsheet

Question

I'm reading spreadsheet and change values of some cells, then save it with

$objWriter = PHPExcel_IOFactory::createWriter($objPHPexcel, 'Excel2007');
$objWriter->save('write.xls');

But it doesn't save any images. How to transfer images from original file to new? We can get images $objPHPExcel->getActiveSheet()->getDrawingCollection() but how put this into new file?

Answer 1

Found out the reason of lost images. They have been copied to excel from .doc directly, when I paste images to excel through menu they've been saved in output file.