How To Migrate Products And Categories From Vresion 4.7 To Version 4.13

Hi all,

Can you tell me what is the best method to migrate products and categories from Cs Cart 4.7 to 4.13 in order to preserve all the existing features and variations?

Right now the default export will change the category ids and also the products won't have the quantity assigned to each of the sizes.

Thank you!