Hello, Ms. Morbenia Morbeck,
Thank you for your inquiry. You can use translation files to modify the description and additional information tabs strings of the WooCommerce plugin (Loco translate > Plugins > WooCommerce).
Additionally, you can use the WooCommerce snippet to rename tabs, as outlined in the documentation here: https://docs.woocommerce.com/document/editing-product-data-tabs/#section-2.
Custom tabs can be set from Xstore >> Theme Settings >> WooCommerce >> Single Product Builder >> Tabs (https://postimg.cc/q63jrtWp) according to your requirements. For more information on custom tabs, please refer to our theme documentation here: https://xstore.helpscoutdocs.com/article/106-support-of-the-custom-product-tabs-for-woocommerce-yikes-inc.
For the complete site translation, please refer to our theme documentation here: https://xstore.helpscoutdocs.com/article/30-base-theme-translation
We hope this information is helpful.
Best Regards,
8Theme’s Team