How to import/export Excel in Lavaral 10?

导出简单CVS文件可以用下面方法（不适用于有引号、换行符等情况。如果有中文，应该自己拼接字符串）：

use Illuminate\Http\Response;
public function downloadExcel()
{
    $headers = [
        'Content-Type' => 'application/vnd.ms-excel',
        'Content-Disposition' => 'attachment; filename="file.xlsx"',
    ];
    $data = [
        ['name', 'email'],
        ['John Doe', 'johndoe@example.com'],
        ['Jane Doe', 'janedoe@example.com'],
    ];
    return new Response($data, 200, $headers);
}

装maatwebsite/excel的方法更好，但有时会装错版本，可以尝试以下命令

 composer require maatwebsite/excel:3.1.48 --with-all-dependencies

参考：

• https://docs.laravel-excel.com/3.1/exports/
• Effortlessly Import and Export Excel and CSV files in Laravel 10 with Examples