Adding category and description field to variation and variable products

We have a woocommerce shop site and we want to add category and description field to any products row (variations and variables)in our excel exported product file, now the category field and description field exist just for variables and not variations.

I think we could change the database structure to hold category and description field for every variation , but I am new on this issue so I need help

[The Blue ones are ok but we want to add same data as variables to related variations shown as red]
https://i.stack.imgur.com/JlS7O.jpg

Kind Regards