SELECT oi.total_paid_tax_excl AS 'Total EX', oi.total_paid_tax_incl AS 'Total Inc', oi.date_add AS 'Inv Date', o.invoice_number AS 'Inv No', o.id_order AS 'Order ID', o.payment AS 'Payment Type', osl.name AS 'Order Status', c.company AS 'Company', c.firstname AS 'Customer First', c.lastname AS 'Customer Last', cl.name AS 'Country' FROM pr_order_invoice oi LEFT JOIN pr_orders o ON oi.id_order = o.id_order LEFT JOIN pr_order_state_lang osl ON o.current_state = osl.id_order_state AND osl.id_lang = 1 LEFT JOIN pr_customer c ON c.id_customer = o.id_customer LEFT JOIN pr_address a ON o.id_address_delivery = a.id_address LEFT JOIN pr_country_lang cl ON a.id_country = cl.id_country AND cl.id_lang = 1 ORDER BY oi.id_order DESC
Depending on your language you might need to change the id_lang on lines 17 and 24