There are many OST to PST Migrator Applications available online for converting OST files to PST files. You can search online sametools software then download it now. This software is offline using
OST to PST Converter is a significant utility to solve all your doubts. It transfer whole OST and also corrupted OST file into an existing or fresh PST file without losing security. OST data consist of several items like emails, calendar, tasks, notes, journals, contacts and more. It works with all Windows OS version like: XP, Vista, 7, 8.1 and 10. It works on OST file versions-2003, 2007, 2010, 2013, 2016. 2019. Compatible with entire MS Outlook (32 and 64bits) version.
EdbMails OST recovery tool. This is the best data recovery and migration solution available on the market and the successful result is obvious using this solution. And it also migrates mailboxes from OST to target Exchange or Office 365 server. You can directly export the recovered mailbox items to the Outlook PST or save in EML, MHT, HTML formats.The application supports all windows server and client versions operating systems and all latest Exchange versions such as 2003, 2007, 2010, 2013, 2016 and 2019