https://github.com/mayicode/MayiCode/blob/master/Tools-Class/phpExcel.php

自己开发的function 可参考

一个比较简单的例子，你参考一下

$objPHPExcel = new PHPExcel();

// Set document properties
$objPHPExcel->getProperties()->setCreator("Maarten Balliauw")
							 ->setLastModifiedBy("Maarten Balliauw")
							 ->setTitle("Office 2007 XLSX Test Document")
							 ->setSubject("Office 2007 XLSX Test Document")
							 ->setDescription("Test document for Office 2007 XLSX, generated using PHP classes.")
							 ->setKeywords("office 2007 openxml php")
							 ->setCategory("Test result file");


// Add some data
$objPHPExcel->setActiveSheetIndex(0)
            ->setCellValue('A1', 'Hello')
            ->setCellValue('B2', 'world!')
            ->setCellValue('C1', 'Hello')
            ->setCellValue('D2', 'world!');

// Miscellaneous glyphs, UTF-8
$objPHPExcel->setActiveSheetIndex(0)
            ->setCellValue('A4', 'Miscellaneous glyphs')
            ->setCellValue('A5', 'éàèùâêîôûëïüÿäöüç');

// Rename worksheet
$objPHPExcel->getActiveSheet()->setTitle('Simple');


// Set active sheet index to the first sheet, so Excel opens this as the first sheet
$objPHPExcel->setActiveSheetIndex(0);


// Redirect output to a client’s web browser (Excel5)
header('Content-Type: application/vnd.ms-excel');
header('Content-Disposition: attachment;filename="01simple.xls"');
header('Cache-Control: max-age=0');
// If you're serving to IE 9, then the following may be needed
header('Cache-Control: max-age=1');

// If you're serving to IE over SSL, then the following may be needed
header ('Expires: Mon, 26 Jul 1997 05:00:00 GMT'); // Date in the past
header ('Last-Modified: '.gmdate('D, d M Y H:i:s').' GMT'); // always modified
header ('Cache-Control: cache, must-revalidate'); // HTTP/1.1
header ('Pragma: public'); // HTTP/1.0

$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel5');
$objWriter->save('php://output');

1、下载PHPExcel解压到extensions，修改PHPExcel/PHPExcel_Autoloader解决自动载入问题

public static function Register() {
    /*if (function_exists('__autoload')) {
        //Register any existing autoloader function with SPL, so we don't get any clashes
        spl_autoload_register('__autoload');
    }
    //Register ourselves with SPL
    return spl_autoload_register(array('PHPExcel_Autoloader', 'Load'));*/
    $functions = spl_autoload_functions();
    foreach ($functions as $function)
        spl_autoload_unregister($function);
    $functions = array_merge(array(array('PHPExcel_Autoloader', 'Load')), $functions);
    foreach ($functions as $function)
        $x = spl_autoload_register($function);
        return $x;
}	//	function Register()

2、修改config/main.php

'import' => array(
    'application.models.*',
    'application.components.*',
    'application.extensions.*',
),

3、创建components/Excel.php

class Excel
{
    private $phpExcel;

    function __construct(PHPExcel $phpExcel)
    {
        $this->phpExcel = $phpExcel;
    }

    /**
     * 根据文件名获取PHPExcel对象
     * @param $file
     * @return PHPExcel
     */
    public function getByFile($file)
    {
        $reader = PHPExcel_IOFactory::createReader('Excel5');
        $excel = $reader->load($file);
        return $excel;
    }
}

4、使用

$excel = new Excel(new PHPExcel());