Stella ost to pst converter software program is the best ost converter software to transform all ost mailbox items in to pst file. This software converts all ost mailbox items into office 365 account and help all version 32bit and 64bit ost record. This software converts all massive ost document sizes with no hassle. This software program converts all corrupted ost mailbox into pst file.
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https://www.stelladatarecovery.com/email-migration/ost-mails-converter-software.php
If you need to convert OST to PST files, you should use the well-known eSoftTools OST to PST Converter software. It contains special characteristics that make it easy to convert single or numerous OST files at the same time. It can convert a large number of ost files into a single pst file. You may also try its free trial pack versions to see how well it works by converting the first 25 ost items from each folder to pst or other appropriate file formats.
Get more info- Convert OST to PST files