Thanks for contacting us. https://docs.woocommerce.com/document/woocommerce-localization/ – please follow this article.
We provide translation files for the theme, but it is not full translation, read here -https://xstore.helpscoutdocs.com/article/30-base-theme-translation
Xstore Core plugin should be translated manually.
Do you want to create a multilingual site or just translate it to dutch?
