If you have multiple PST files, don't panic. Today I will tell you about a software that will help you merge multiple PST files into one. The name of that PST merge software is MailsDaddy PST Merge & Join Tool. It can easily combine multiple PST files into a single Outlook PST without any loss. You do not even need to install any other applications while using it. Additionally, you can easily add Unicode, archived, corrupted, and ANSI files.
For more details: https://www.mailsdaddy.com/pst-merge-and-join/