OST and PST are two different email clients to store data in Microsoft Outlook email clients several times users wants to convert OST File to PST Format due to various reasons thus you can take help of most promising and easy to use
OST to PST Converter software. It helps to convert multiple OST Files to PST Format in one go. It is dedicated tool recover orphaned, corrupted or damaged OST Files into PST Format without any data loss. It is compatible with Outlook 2019, 2016, 2013, 2010 and all below versions. Users can download free trial version of this well developed software.
For more info-
https://www.zooksoftware.com/ost-to-pst/