一、创建多个工作表

$objPHPExcel = new PHPExcel ();
$objPHPExcel->setActiveSheetIndex(0);//新建第一个工作表
$objPHPExcelActiveSheet = $objPHPExcel->getActiveSheet() ;
$objPHPExcelActiveSheet->setTitle('装箱单');//工作表的名字
$objPHPExcelActiveSheet->getTabColor()->setARGB(PHPExcel_Style_Color::COLOR_YELLOW); //工作表标签颜色

$msgWorkSheet = new PHPExcel_Worksheet($objPHPExcel, '合同'); //新建第一个工作表
$objPHPExcel->addSheet($msgWorkSheet);    
$objPHPExcel->setActiveSheetIndex(1); //第二个工作表
$objPHPExcelActiveSheet = $objPHPExcel->getActiveSheet() ;
$objPHPExcelActiveSheet->getTabColor()->setARGB( PHPExcel_Style_Color::COLOR_BLUE); //工作表标签颜色

最后的效果图：

二、excel一些样式设置

$objPHPExcelActiveSheet->getDefaultRowDimension()->setRowHeight(25);//设置默认行高

$objPHPExcelActiveSheet->getStyle('A1')->getFont()->setBold(true)->setName('Calibri')->setSize(30);

//setBold(true)设置加粗，setName设置字体，setSize设置字体大小


$objPHPExcelActiveSheet->mergeCells('G3:I3');//合并单元格



$objPHPExcelActiveSheet->getRowDimension(1)->setRowHeight(90);//设置指定行的行高


$objPHPExcelActiveSheet->getColumnDimension('A')->setWidth(17);//设置列宽



$objPHPExcelActiveSheet->getStyle('C1')->getAlignment()

->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);//设置水平对齐
$objPHPExcelActiveSheet->getStyle('C1')->getAlignment()

->setVertical(PHPExcel_Style_Alignment::VERTICAL_CENTER);//设置垂直对齐



$styleArray = array(
    'borders' => array(
        'allborders' => array(
            'style' => PHPExcel_Style_Border::BORDER_THIN,
        ),
    ),
);
$objPHPExcelActiveSheet->getStyle('A13:I15')->applyFromArray($styleArray);//设置表格边框样式



//设置打印格式
$objPHPExcelActiveSheet->getPageSetup()

->setOrientation(PHPExcel_Worksheet_PageSetup::ORIENTATION_PORTRAIT);
$objPHPExcelActiveSheet->getPageSetup()->setPaperSize(PHPExcel_Worksheet_PageSetup::PAPERSIZE_A4);


$objPHPExcelActiveSheet->getStyle('B4:B8')->getAlignment()->setWrapText(true);//自动换行


$objPHPExcelActiveSheet->getStyle('A1:K1')->getFill()

->getStartColor()->setARGB('FFFFFF');//设置填充颜色


$objPHPExcel->getActiveSheet()->setShowGridlines(true);//显示或隐藏网格线 /false


$objPHPExcel->getActiveSheet()->freezePane('A2');//固定表头


$objPHPExcel->getActiveSheet()->getRowDimension(1)->setVisible(false);//隐藏某一行

$objPHPExcel->getActiveSheet()->getPageSetup()->setFitToWidth(1);//设置自动填充到页面的宽度
$objPHPExcel->getActiveSheet()->getPageSetup()->setFitToHeight(0);