There are many converter tools in online marketing. In my opinion, eSoftTools OST to PST Converter software is the best way to convert OST files into PST format without losing internal data. This tool migrates all the OST files into various formats such as PST, EML, EMLX, MSG, MBOX, HTML, Gmail, and many others. With all emails inbox, sent items, drafts, notes, journals, tasks, etc. users can split the large PST file into small PST folders. For the time of conversion, users want to see how much time is left so they can check the live preview process by using this tool.