Downloadable Product Link Product Downloadable Link Import Entity Magento_Downloadable downloadable_link select Magento\Downloadable\Model\Source\TypeUpload 1 1 1 100 1 /d/o/document.pdf file url https://example.com/sample.pdf 2 1 2 200 1 https://example.com/melody.ogg url file /m/e/melody-sample.ogg downloadable_link link_id downloadable_link link_id downloadable_link link_id downloadable_link link_id catalog_product_entity downloadable_link downloadable_link true one_to_many Magento\Catalog\Api\Data\ProductInterface product_id