A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
There is no 'default order' for records in a Excel list. To restore a previous order you'd have to Undo everything done since sorting the records... Usually that isn't preferable :-) If there is no combination of fields inherent in the data which you can use to sort again to return the records to the order you prefer, you need to anticipate this when creating the list.
Include an additional field (column) in the data range so you can assign a sequential 'record number' to each record as it's added to the list. That provides each record with a unique identifier which can later be used as a sort key to return the records to that order.
Regards,
Bob J.