The attached file is an Outstanding Finnair these invoices not yet paid, or it may be possible that Finnair does not receive an invoice or you may have to pay, but did not tell the details of payment, accounting.
The attachment is Outstanding Finnair these invoices have not been paid. Or it may be possible that Finnair has not been invoiced or paid for, but did not give details of the payment to the account.
The attached file is Outstanding Finnair these invoices are not paid, or it may be possible that the Finnair did not receive an invoice or may pay money but did not inform the payment details for accounting .