I am facing an issue with one of my old Outlook data files. The PST file was created years ago in an older Outlook version, and I recently found out that it is in ANSI format, which has a size limitation of 2 GB. Now I want to migrate all my emails, contacts, and other items into a Unicode PST file so I can continue using it in newer Outlook versions without hitting size limits. However, I am not sure which method is the safest and most reliable. Some people suggest manually creating a new Unicode PST and importing the old ANSI PST into it, while others recommend using tools to convert it directly. Can anyone guide me on the best and safest method to convert an ANSI PST file into a Unicode PST file?