$objPHPExcel = new PHPExcel();

$objPHPExcel->setActiveSheetIndex(0);

$objActSheet = $objPHPExcel->getActiveSheet();

$objDrawing = new PHPExcel_Worksheet_Drawing();

$objDrawing->setName('avatar');

$objDrawing->setDescription('avatar');

$objDrawing->setPath(‘path_of_image/my_image.jpg’);

$objDrawing->setHeight(30);

$objDrawing->setWidth(30);

$objDrawing->setCoordinates('A1');

$objDrawing->setWorksheet($objPHPExcel->getActiveSheet());

$objActSheet->getColumnDimension(‘A’)->setWidth(15);

$objActSheet->getRowDimension(1)->setRowHeight(40);