ATS OST to PST Conversion tool is designed in such a way that it import OST file to Outlook 2016, 2013, 2010, 2007 without any hassle. It converts all data items such as emails, journals, notes, tasks, contacts, etc. You can also batch convert OST to PST with our Batch OST Converter Tool. It supports various file formats like PST, EML, HTML, EMLX, Office365, live Exchange server, vCard, vCal, MSG, and MBOX. Moreover, using this software to export OST data to PST, one can convert offline OST file of any size successfully to PST file format. it give a free demo version to access 30 emails per folder.
OST to PST Convert full version seems to be tough earlier to me but when I got OST to PST Converter with the help of my friend all the files are simply converter from OST to PST format without creating any hurdles during the whole process. You can download free tools from here OST to PST.