Test Stella pst file converter software.
The software can transform all pst items into eml files, emlx file, msg file, and mbox file. It also converts PST file, and office 365 account. This software will convert all pst files like emails items, contact items, task items, notes various other items into a pst format and supports all versions 32bit and 64bit pst file.
for more info visit this link https://www.stelladatarecovery.com/email-migration/pst-email-recovery.php