Transfer OST to MS Outlook - Version 3.6 If you are probing for precise solution to transfer your Exchange OST file, then try this OST to Outlook converter software is most excellent choice for you. This OST to MS Outlook software helps you to recover damage/corrupt Exchange OST file then transfer OST to MS Outlook completely. Software firstly recover OST file and then transfer OST file to Outlook PST, EML and MSG file formats. OST to Outlook converter tool can recover and transfer emails from .ost to .pst in outlook and including email, calendars, contacts, task etc. You can also try this tool before purchasing it. Download free demo which is free to transfer OST to PST in outlook 2010, 2007, 2003 items. Get full version to transfer complete OST to PST items. Full version is available at only $99. 24x7 technical assistance is also available to assist your queries.