Which one is potentially Easy method to migrate ANSI PST to Unicode format ?

 

PST Upgrade Software 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 that could be easily open in all versions of Outlook including 2016. You can also select UNICODE PST file and downgrade into ANSI PST file which can be also open in entire editions of MS Outlook.
Try the free demo version of this software, here:- https://www.sysinfotools.com/recovery/pst-upgrade.php