PassFixer OST to PST Converter software can easily Import OST file into PST, HTML, MBOX, EML, EMLX, Yahoo, Gmail, Office365, ICS, CSV, and so on. It is able to display the entire preview version of OST files before the conversion. This software is capable with all versions of MS Outlook or Exchange Server. Demo pack is also available in this tool which can convert upto 25 folders of each mailbox for free.