transfer some data from old prestashop to 8.1

[foxnetwork]

I am in the process of transferring shop from 1.6 to 8.1  All data in new shop now and all ok except I now have a few new customers that have add orders to old shop and I need to get that data into 8.1 My question is if I do it manually what are the tables I need to look in for the new customer registration and the orders they created so I can import them into 8.1 database

[tdsoft]

There tables for store customer:

• ps_customer
• ps_customer_group
• ps_customer_message
• ps_customer_message_sync_imap
• ps_customer_session
• ps_customer_thread

There tables for an order:

• ps_orders
• ps_order_carrier
• ps_order_cart_rule
• ps_order_detail
• ps_order_detail_tax
• ps_order_history
• ps_order_invoice
• ps_order_invoice_payment 
• ps_order_invoice_tax
• ps_order_message
• ps_order_message_lang
• ps_order_payment
• ps_order_return
• ps_order_return_detail
• ps_order_slip
• ps_order_slip_detail

[ComGrafPL]

Client, orders, addresses.

[Zohaib-fk]

The table names have the same letter as per their module names so that it will be easy to identify module relationships with tables and their work.