All users can simply transfer email files, mailbox folders from damaged OST to PST Outlook format, then you can try KDETools for OST to PST Converter. The software is an easy way to recover corrupt files of offline .ost with save all attachments simply. The conversion software included extra key feature to split large PST files into small PST files (25GB).
More info=- free unlimited ost to pst converter
Use the new OST to PST converter tool and converts all the OST files to PST format without any issue. The tool is simple, easy to use, and converts the OST files without any data alteration. The quality of your data remains intact and there is no data loss while the conversion process.
For more info:- https://www.nsfsecurityremover.com/ost-to-pst-converter.html