Archived Backups - activate to live


I inadvertently closed my fiscal years of 2021-2022 and am now operating in fiscal year 2022-2023.  I need to go back to a particular month in 2021 to make corrections.  I'm able to restore the archive back up but am unable to make corrections (read-only).  How can I restore this to make the necessary changes and then close the old year again and then just re-enter all accounting activity for January 2023 again?