$objPHPExcel->getActiveSheet()->getColumnDimension('A')->setWidth(10);

$objPHPExcel->getActiveSheet()->getColumnDimensionByColumn('C')->setAutoSize(true);

$objPHPExcel->getActiveSheet()->getColumnDimensionByColumn('C')->setWidth('10');

$objPHPExcel->getActiveSheet()->getRowDimension(1)->setRowHeight(-1);

$objPHPExcel->getActiveSheet()->getStyle('E')->getAlignment()->setWrapText(true); 

$activeSheet->getStyle('A')->getFill()->setFillType('solid')->getStartColor()->setARGB('00FF0000'); 

$activeSheet->getStyle('A')->getAlignment()->setHorizontal('right'); 

$activeSheet->getStyle("E")

                 ->getAlignment()
                 ->setHorizontal(\PHPExcel_Style_Alignment::HORIZONTAL_RIGHT);

setVERTICAL(PHPExcel_Style_Alignment::PHPExcel_Style_Alignment::VERTICAL_CENTER);

$objPHPExcel->getActiveSheet()->mergeCells('A1:B1');

 $styleArray = array(
  'borders' => array(
    'allborders' => array(
      'style' => PHPExcel_Style_Border::BORDER_THIN
    )
  )
);

$sheet->getStyle('A1:P3')->applyFromArray($styleArray);
unset($styleArray);