Urgent Help needed for restoring our orders After Migration

Deleting Duplicated Orders: When the site was restored on the 20th, some sales data was lost. We manually added these sales back into the system, but now there are duplicate orders (some orders are the same, but with separate entries). The client wants these duplicated orders to be erased.

Regenerating Orders: After deleting the duplicate orders, we wants these orders to be regenerated properly. This means that the orders should be consolidated (unified) so that each order appears only once.

Assigning Correct Order and Invoice Numbers: We have attached Excel files that contain the correct order and invoice numbers (receipts and invoices). After regenerating the orders, each order must be assigned the correct order and invoice numbers as listed in the attached files.

Can someone please urgently help?