$file = new \SplFileObject($file_name, 'w');

$searchData = ['status' => 1];
$qb = $this->productRepository->getQueryBuilderBySearchDataForAdmin($searchData);
$qb->select('p, pc')->distinct();
$Products = $qb->getQuery()->getResult();

foreach ($Products as $Product) {
    $row = [
        $Product->getId(),
        $Product->getName(),
        $Product->getPrice02IncTaxMax()
    ];

    $file->fputcsv($row);
}