Hello, Modestino Ferraro,
We are not a personal content manager, so we can’t do it for you, unfortunately.
To prevent unexpected problems you can create a new test site, and work there first.
Here is a link to WC docs about export/import products – https://woocommerce.com/document/product-csv-importer-exporter/
Or create a full backup of your current site before doing changes directly there.
We can help in case you just want to add on your site some pages from another demo.
Kind Regards,
8theme team