Maatwebsite\Excel如何下载文件

composer require maatwebsite/excelCopy

public function export() {
        return Excel::download(new CustomerExport(), 'users.csv', 
        \Maatwebsite\Excel\Excel::CSV, 
        ['Content-Type' => 'text/csv', 
        'Content-Type' => 'application/vnd.ms-excel',
        'Content-Disposition' => "attachment; filename='Report.xls'"]);
    }
Copy

 Route::get('customers/export', "CustomersController@export");Copy