Hi @emoteek,
The tabs metadata key is yikes_woo_products_tabs, but the content is stored as PHP serialized data. That’s probably not something you’d want to manage in an excel spreadsheet. You’re better off choosing a different format like JSON and modifying the WooCommerce importer to decode and serialize the tab data during the import process. We have a brief article on that here – https://yikesplugins.com/knowledge-base/importing-custom-tabs-using-the-built-in-woocommerce-csv-importer/
There’s also a recent support thread on doing the full export & import process located here – https://wordpress.org/support/topic/export-not-including-data/
Let me know if that helps,
Jon