OST is offline files of exchange server mailbox in local machine. Due to any reason if break the connection with exchange server and you can’t open your mail offline format. So don’t be panic because DUX OST TO PST RECOVERY SOFTWARE always help to repair any errors of OST file and convert OST file to PST. DUX OST TO PST RECOVERY SOFTWARE SUPPORT ALL VERSION of PST file: 97/98/2000/2003/2007/2010/2013/2016/2019.
For more:-https://www.duxdatarecovery.com/ost-to-pst-recovery.php