Migrate Invoices, Orders and Payrolls (only data, not modules) from Odoo 12 to Odoo 14.

I have my Odoo 12 and i will go to Odoo 14 (i installed a new empty Odoo) But i want to fill importing invoices, orders and payrolls. These are the tasks to do:

- Migrate data (export from Odoo 12 and import to 14) my invoices (with statuses, and payments)
- Migrate data (export from Odoo 12 and import to 14) my orders
- Migrate data (export from Odoo 12 and import to 14) my payrolls
- Add a text and logo on footer on pdf documents (iyou can use code of footer of my odoo 12 documents)
- Install the Responsive template: https://apps.odoo.com/apps/themes/14.0/muk_web_theme/