Ost to-pst migration tool Move all ostfile data into to pst. Stella ostto pstmigration Tool migrate all ostfile data to office365 account. Stella ost pst tool migrates all ost mailboxes in to eml or emlx format. This application can convert any ost to pst files.

Link to find out more

https://www.stelladatarecovery.com/email-migration/ost-mails-recovery-software.php