A bank reconciliation is a process of reconciling the Cash Book account (GL) with the Bank Statement. It is a process of picking the discrepancy between the two, such as omission error, typo error, duplicated transactions, etc..
Occasionally you may make a mistake when reconciling and require to revert the processed reconciliation. To do it, you have to click the 'Load Old' button from the Reconciliation window of the MoneyWorks accounting system and select the month of reconciled data to clear. Assuming you have reconciled five months from Jan to May, it will undo the reconcile from March to May if you selected March from the reconciled list. Once the reconciled detail loaded, click the gear icon and select 'Clear all reconciliations from this month' option. Proceed to reconciliation again once wrongly reconciled data has cleared.