Cotton I Sew

I’ve rolled back but the date was still there, hence the request for help.

I added the date of 21/03/2031 instead of 31/03/2021 and my bank has reconciled to 2031! I now can't reconcile any further transactions for the financial year (I'm in Australia). I did search through the forum but the suggestions didn't work. I can only get a reconciliation in excel format and it has no date of reconciliation to adjust. My computer runs on Windows 10. Program files are saved "C:\Program Files (x86)\NCH Software\ExpressAccounts" but it only contains the launch files .exe nothing else. Is there anyone that can help please?