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<?php
declare(strict_types=1);
namespace PhpOffice\PhpSpreadsheetTests\Reader\Xlsx;
use PHPUnit\Framework\TestCase;
class MyXlsxTest extends TestCase
{
public function testCustomSpreadsheetCustomLoader(): void
$reader = new MyXlsxReader();
$infile = 'tests/data/Reader/XLSX/colorscale.xlsx';
/** @var MySpreadsheet */
$mySpreadsheet = $reader->load($infile);
self::assertSame(64, $mySpreadsheet->calcSquare('A3'));
$mySpreadsheet->disconnectWorksheets();
}