If you are searching for the effective and easy to use OST to PST Converter software then you can use most promising ZOOK OST to PST Converter software. This utility provide single step solution to convert complete offline OST date including mailbox items and all other elements to PST format. The software intact all data integrity and folder hierarchy of OST files in new PST files. It contains simple and user-friendly interface so that users will get smooth and instant OST to PST conversion. It is fully supportable to Outlook 2019, 2016, 2013, 2010 and all below versions.
You can try, Stellar Converter for OST. It is an advanced software tool used for converting OST to PST file format. It is capable of converting the entire mailbox data, including emails, contacts, calendars, tasks, notes, journals, and attachments, to a corresponding PST file. It also works with password-protected OST files and can convert OST file to several other file formats, such as MSG, EML, HTML, RTF, MBOX, and PDF. The software supports all versions of Exchange, Outlook, and Windows OS.