具體程式碼：

Vendor('PHPExcel.PHPExcel');

public function excel_runimport(){

    $PHPExcel=new \PHPExcel();

    if (! empty ( $_FILES ['file'] ['name'] )){

        $file_types = explode ( ".", $_FILES ['file'] ['name'] );

        $exts = $file_types [count ( $file_types ) - 1];

        /*判別是不是.xls檔案，判別是不是excel檔案*/

        if (strtolower ( $exts ) != "xlsx" || strtolower ( $exts ) != "xls"){

                $this->error ( '不是Excel檔案，重新上傳');

        }

        //生成唯一的ID $filename = md5(uniqid(microtime(true),true));

        $config=array( 'maxSize'=>70000000,

                'exts'=>array('xlsx','xls'),

                'rootPath'=>'./Uploads/excel/',

                //儲存的檔名

                'saveName' =>$filename,

                //開啟子目錄

                'subName' =>array('date','Ymd'),

        );

        $upload=new \Think\Upload($config);

        $info=$upload->upload();

        if($info){ if($exts == 'xls'){

            import("Vendor.PHPExcel.Reader.Excel5");

            $PHPReader=new \PHPExcel_Reader_Excel5();

        }else if($exts == 'xlsx'){

            import("Vendor.PHPExcel.Reader.Excel2007");

            $PHPReader=new \PHPExcel_Reader_Excel2007();

        }

        $rootPath='./Uploads/excel/'; $savePath = $info['file']['savepath'];

        $saveName=$info['file']['savename'];

         //載入檔案建立物件

        $filePath=$rootPath.$savePath.$saveName; $objReader = $PHPReader->load($filePath);

        //獲取表中的第一個工作表，如果要獲取第二個，把0改為1，依次類推

        $currentSheet=$objReader->getSheet(0);

        //獲取總列數

        $allColumn=$currentSheet->getHighestColumn();

        //獲取總行數

        $allRow=$currentSheet->getHighestRow();

        //迴圈獲取表中的資料，$currentRow表示當前行，從哪行開始讀取資料，索引值從0開始

        $data = array();//建立空陣列接收表格資料

        //從第幾行開始迴圈

        for($rowIndex=2;$rowIndex<=$allRow;$rowIndex++){

            //迴圈讀取每個單元格的內容。注意行從1開始，列從A開始

            //迴圈列

                for($colIndex='A';$colIndex<=$allColumn;$colIndex++){

                        $addr = $colIndex.$rowIndex;

                        $cell = $currentSheet->getCell($addr)->getValue();

                        if($cell instanceof PHPExcel_RichText){

                            //富文字轉換字串

                            $cell = $cell->__toString();

                        }

                    $data[$rowIndex][$colIndex] = $cell;

            }

        }

            if(is_file($filename)) unlink($filename);

            }else{

                echo $upload->getError();

            }

                // $this->success ('匯入資料庫成功',U('excel_import'),1);

    }

}