PST Upgrade utility quickly performs ANSI PST to UNICODE PST and UNICODE PST to ANSI PST. The Software is enhanced with an advanced conversion algorithm that support batch operations to convert PST files. It can safely convert PST files without causing any alteration to the original files and folders. The software supports all higher or lower versions of Microsoft Outlook email client application.
Check the free trial version of this tool, here:- Upgrade Outlook - Convert ANSI PST to Unicode Format

 

Outlook PST Upgrade tool allows you to easily read large or maximum size of PST file and process them to explore the ANSI or UNICODE PST files. You can select ANSI PST file and quickly upgrade into UNICODE PST file without any data loss. Upgraded file easily open in all versions of Outlook including 2016. You can also select
UNICODE PST file into ANSI PST file which can be also open in entire editions of MS Outlook including 2013 and Outlook 2016.
get more detail follow this link :-http://www.osttopstapp.com/ansi-to-unicode-pst.html