Convert ANSI to Unicode Downloader - Version 2.1 To convert ANSI to Unicode PST get advance ANSI to Unicode conversion utility that helps you to convert Outlook personal folder into ANSI or Unicode PST format.Now it is easy to convert ANSI to Unicode PST and Unicode to ANSI PST file format with Outlook PST converter tool. Using SysTools PST Upgrade tool you can simply convert ANSI PST to Unicode PST files and increase the size limit of Outlook PST from 2G You can easily transfer Outlook mailbox from Outlook 2002 to 2007/2010 and extends the size limit of Outlook PST files (from 2GB to 20GB) using PST converter tool. journals, appointments and calendars. Demo version of PST Upgrade software is available free of cost but demo version have some restrictions you can convert (ANSI to Unicode or Unicode to ANSI) only first three folders of Outlook PST. Buy full version of PST Upgrade software is available only at 49 USD. License version easily converts unlimited ANSI to Unicode PST as well as Unicode to ANSI PST.