If you are looking for a solution to merge small PST files into a single file, the Sysinfo PST merge tool is an excellent option. This tool allows you to merge multiple PST files simultaneously, Users will be able to easily combine Outlook Contacts, Emails, Calendars, Journal entries, and other mail items into a unified file, the tool also offers a feature to eliminate duplicate items from the selected PST files. Some of its other features are: