Example for koolreport/pro 5.16.2 produces corrupted Excel data

testreport.php

<?php

require_once '../vendor/autoload.php';

use koolreport\KoolReport;
use koolreport\datasources\ArrayDataSource;
use koolreport\excel\ExcelExportable;
use koolreport\processes\ColumnMeta;

class TestReport extends KoolReport
{
    use ExcelExportable;

    public function settings()
    {
        return [
            "dataSources" => [
                "data" => [
                    "class" => ArrayDataSource::class,
                    "dataFormat" => "associate",
                ],
            ],
        ];
    }

    public function setup()
    {
        $this->src('data')
            ->load([
                ['id' => '182398', "customerName"=>"Johny Deep", "dollar_sales"=>0],
                ['id' => '182399', "customerName"=>"Angelina Jolie", "dollar_sales"=>0],
                ['id' => '182400', "customerName"=>"Brad Pitt", "dollar_sales"=>0],
                ['id' => '700001', "customerName"=>"Nocole Kidman", "dollar_sales"=>0],
            ])
            ->pipe(new ColumnMeta([
                'id' => [
                    'label' => 'ID',
                    'type' => 'number',
                ],
                'customerName' => [
                    'label' => 'Customer Name',
                    'type' => 'string',
                ],
                'dollar_sales' => [
                    'label' => 'Dollar Sales',
                    'type' => 'number',
                ],
            ]))
            ->pipe($this->dataStore("x"));
    }
}

$report = new TestReport();

$report->run()->exportToExcel([
    "dataStores" => [
        'x' => [
            "columns" => [
                'id',
                'customerName',
                'dollar_sales',
            ],
        ],
    ],
])->toBrowser("report.xlsx");