How do you exchange old Austrian currency?

To exchange old Austrian currency, specifically the schilling, you can visit the Austrian National Bank (Oesterreichische Nationalbank), which still exchanges schillings for euros. Alternatively, some commercial banks and currency exchange services may accept old notes, but it's advisable to check in advance. Make sure to bring valid identification, as it may be required for the exchange process. Note that there may be a time limit on exchanges, so it's best to do this sooner rather than later.