controller excel

<?php
/*
https://docs.laravel-excel.com/2.1/blade/styling.html

Routes
    Route::get('/importing','Excels@index');
    Route::post('/importing','Excels@import');
*/
namespace App\Http\Controllers;
use App\Http\Controllers\Controller;
use Excel;
use Illuminate\Http\Request;

class Excels extends Controller{
private $datas;
    function index()
    {
        $data=[];
        return view('demo.excel', $data);

    }

    function import(Request $res){
        $this->datas=['title'=>'Gunawan'];
        Excel::create('New file', function($excel ) {

        $excel->sheet('New sheet', function($sheet) {

            $sheet->loadView('demo.excel_import',$this->datas);

        });

        })->download('xlsx');

    }
}