function excelToArray(){  
    require_once dirname(__FILE__) . '/Lib/Classes/PHPExcel/IOFactory.php';  
      
    //加载excel文件  
    $filename = dirname(__FILE__).'/result.xlsx';  
    $objPHPExcelReader = PHPExcel_IOFactory::load($filename);    
  
    $sheet = $objPHPExcelReader->getSheet(0);        // 读取第一个工作表(编号从 0 开始)  
    $highestRow = $sheet->getHighestRow();           // 取得总行数  
    $highestColumn = $sheet->getHighestColumn();     // 取得总列数  
  
    $arr = array('A','B','C','D','E','F','G','H','I','J','K','L','M', 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z');  
    // 一次读取一列  
    $res_arr = array();  
    for ($row = 2; $row <= $highestRow; $row++) {  
        $row_arr = array();  
        for ($column = 0; $arr[$column] != 'F'; $column++) {  
            $val = $sheet->getCellByColumnAndRow($column, $row)->getValue();  
            $row_arr[] = $val;  
        }  
          
        $res_arr[] = $row_arr;  
    }  
      
    return $res_arr;  
}

或者 

function excelToArray(){  
    require_once dirname(__FILE__) . '/Lib/Classes/PHPExcel/IOFactory.php';  
      
    //加载excel文件  
    $filename = dirname(__FILE__).'/result.xlsx';  
    $objPHPExcelReader = PHPExcel_IOFactory::load($filename);    
  
    $reader = $objPHPExcelReader->getWorksheetIterator();  
    //循环读取sheet  
    foreach($reader as $sheet) {  
        //读取表内容  
        $content = $sheet->getRowIterator();  
        //逐行处理  
        $res_arr = array();  
        foreach($content as $key => $items) {  
              
             $rows = $items->getRowIndex();              //行  
             $columns = $items->getCellIterator();       //列  
             $row_arr = array();  
             //确定从哪一行开始读取  
             if($rows < 2){  
                 continue;  
             }  
             //逐列读取  
             foreach($columns as $head => $cell) {  
                 //获取cell中数据  
                 $data = $cell->getValue();  
                 $row_arr[] = $data;  
             }  
             $res_arr[] = $row_arr;  
        }  
          
    }  
      
    return $res_arr;  
}

Excel文件导出

/** 
 * 创建(导出)Excel数据表格 
 * @param  array   $list        要导出的数组格式的数据 
 * @param  string  $filename    导出的Excel表格数据表的文件名 
 * @param  array   $indexKey    $list数组中与Excel表格表头$header中每个项目对应的字段的名字(key值) 
 * @param  array   $startRow    第一条数据在Excel表格中起始行 
 * @param  [bool]  $excel2007   是否生成Excel2007(.xlsx)以上兼容的数据表 
 * 比如: $indexKey与$list数组对应关系如下: 
 *     $indexKey = array('id','username','sex','age'); 
 *     $list = array(array('id'=>1,'username'=>'YQJ','sex'=>'男','age'=>24)); 
 */  
function exportExcel($list,$filename,$indexKey,$startRow=1,$excel2007=false){  
    //文件引入  
    require_once APP_ROOT.'/Api/excel/PHPExcel.php';  
    require_once APP_ROOT.'/Api/excel/PHPExcel/Writer/Excel2007.php';  
      
    if(empty($filename)) $filename = time();  
    if( !is_array($indexKey)) return false;  
      
    $header_arr = array('A','B','C','D','E','F','G','H','I','J','K','L','M', 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z');  
    //初始化PHPExcel()  
    $objPHPExcel = new PHPExcel();  
      
    //设置保存版本格式  
    if($excel2007){  
        $objWriter = new PHPExcel_Writer_Excel2007($objPHPExcel);  
        $filename = $filename.'.xlsx';  
    }else{  
        $objWriter = new PHPExcel_Writer_Excel5($objPHPExcel);  
        $filename = $filename.'.xls';  
    }  
      
    //接下来就是写数据到表格里面去  
    $objActSheet = $objPHPExcel->getActiveSheet();  
    //$startRow = 1;  
    foreach ($list as $row) {  
        foreach ($indexKey as $key => $value){  
            //这里是设置单元格的内容  
            $objActSheet->setCellValue($header_arr[$key].$startRow,$row[$value]);  
        }  
        $startRow++;  
    }  
      
    // 下载这个表格，在浏览器输出  
    header("Pragma: public");  
    header("Expires: 0");  
    header("Cache-Control:must-revalidate, post-check=0, pre-check=0");  
    header("Content-Type:application/force-download");  
    header("Content-Type:application/vnd.ms-execl");  
    header("Content-Type:application/octet-stream");  
    header("Content-Type:application/download");;  
    header('Content-Disposition:attachment;filename='.$filename.'');  
    header("Content-Transfer-Encoding:binary");  
    $objWriter->save('php://output');  
}

function exportExcel($list,$filename,$indexKey=array()){  
    require_once dirname(__FILE__) . '/Lib/Classes/PHPExcel/IOFactory.php';  
    require_once dirname(__FILE__) . '/Lib/Classes/PHPExcel.php';  
    require_once dirname(__FILE__) . '/Lib/Classes/PHPExcel/Writer/Excel2007.php';  
      
    $header_arr = array('A','B','C','D','E','F','G','H','I','J','K','L','M', 'N','O','P','Q','R','S','T','U','V','W','X','Y','Z');  
      
    //$objPHPExcel = new PHPExcel();                        //初始化PHPExcel(),不使用模板  
    $template = dirname(__FILE__).'/template.xls';          //使用模板  
    $objPHPExcel = PHPExcel_IOFactory::load($template);     //加载excel文件,设置模板  
      
    $objWriter = new PHPExcel_Writer_Excel5($objPHPExcel);  //设置保存版本格式  
      
    //接下来就是写数据到表格里面去  
    $objActSheet = $objPHPExcel->getActiveSheet();  
    $objActSheet->setCellValue('A2',  "活动名称：江南极客");  
    $objActSheet->setCellValue('C2',  "导出时间：".date('Y-m-d H:i:s'));  
    $i = 4;  
    foreach ($list as $row) {  
        foreach ($indexKey as $key => $value){  
            //这里是设置单元格的内容  
            $objActSheet->setCellValue($header_arr[$key].$i,$row[$value]);  
        }  
        $i++;  
    }  
      
    // 1.保存至本地Excel表格  
    //$objWriter->save($filename.'.xls');  
      
    // 2.接下来当然是下载这个表格了，在浏览器输出就好了  
    header("Pragma: public");  
    header("Expires: 0");  
    header("Cache-Control:must-revalidate, post-check=0, pre-check=0");  
    header("Content-Type:application/force-download");  
    header("Content-Type:application/vnd.ms-execl");  
    header("Content-Type:application/octet-stream");  
    header("Content-Type:application/download");;  
    header('Content-Disposition:attachment;filename="'.$filename.'.xls"');  
    header("Content-Transfer-Encoding:binary");  
    $objWriter->save('php://output');  
}