Laravel Export Trait using Box/Spout

export.php

<?php
namespace App\Traits;

use Box\Spout\Writer\Common\Creator\WriterEntityFactory;

trait Export
{
    public static function export($target, $items)
    {
        $writer = WriterEntityFactory::createXLSXWriter();
        $writer->openToFile($target);
        // Columns
        $cells = array_keys($items->first()->toArray());
        $row = WriterEntityFactory::createRowFromArray($cells);
        $writer->addRow($row);
        // Rows
        foreach($items as $item) {
            $cells = array_values($item->toArray());
            $row = WriterEntityFactory::createRowFromArray($cells);
            $writer->addRow($row);
        }
        $writer->close();
        return true;
    }

}

Registration.php

<?php

namespace App;

use App\Traits\Export;
use Illuminate\Database\Eloquent\Model;

class Registration extends Model
{
    use Export;

    public $guarded = [];
}

RegistrationController.php

<?php

namespace App\Http\Controllers;

use App\Http\Controllers\Controller;
use App\Registration;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Storage;

class RegistrationController extends Controller
{
    public function export()
    {
        $target = Storage::disk('public')->path('registrations.xlsx');
        $items = Registration::latest()->get();
        if (Registration::export($target, $items)) {
            return response()->download($target);
        }
    }

}