Written-off AP Invoice/CM paid-off with Zero showing as fully paid in AP Trial Balance

Hello,

We had to write off couple of thousands open AP invoices and around a hundred open credit memos. To write off open AP invoices, we created Credit memos and paid them off with zero amount. To write off open Credit memos, we created standard invoices and paid them off with zero amount. The issue we have now that, those open invoices and credit memos are still showing in AP Trial balance as fully paid.

Please suggest us a right way to take them off the AP Trial balance.

Regards,

Vikram