You could have downloaded MSOutlook Help OST to PST Converter 21.1 from our software library for free. The software lies within System Utilities, more precisely HDD Management. This tool was originally developed by MS Outlook Help.
From the developer:
OST to PST Converter from MS Outlook Help successfully migrates the emails and other contents of the mailbox from offline Exchange OST files to Outlook PST files. It exports all the data from the mailbox like emails, events, calendars, journals, contacts, tasks, etc. Also, it exports the OST files to several other file formats such as MSG, MBOX, DBX, and EML.
You may want to check out more software, such as KDETools OST to PST Converter Software, SysOz OST to PST Converter or SameTools OST to PST Converter Tool, which might be similar to MSOutlook Help OST to PST Converter.
Editors & Converters
Remote Computing