With vMail OST to PST Converter you can convert an OST file into an Outlook PST file without losing any data and with 100% accuracy. The software converts OST files to PST and other formats, such as MBOX, PDF, EML, etc. it has a simple interface so novice users also use this tool easily. You can try this tool with its free demo version.

Converts Outlook Database OST File to PST with all attachments and mailbox items on Mac.

Exports OST files to other files as well like EML, MBOX, Office 365, and Live Exchange.

Helps to split the resultant PST file if it is too large and has huge OST data.

Know more info-https://www.vsoftware.org/ost-to-pst-converter.html