The Shortcode Element allows you to add shortcode in a table.
Even though a shortcode is just a text with square brackets, it won’t work on a table if you insert it in the Text Element.
You need to drag and drop the ‘Shortcode’ element on the table’s cell and then enter the shortcode there.
Hope this quick tutorial helped you to understand how to use shortcode in WP Table Builder. If you have any questions regarding this, feel free to ask via comment.