You are able to on the Regain Outlook PST Merger Tool to effectively merge PST files. With the help of this robust tool, you can rapidly combine several PST files into one file while preserving all email data, including contacts, tasks, calendars, and attachments. It creates a single UNICODE PST file by combining ANSI and UNICODE PST files. The combined material can be appended to an existing PST file or saved in a new one. The program is simple to use, integrates with all versions of Microsoft Outlook, and guarantees a safe and easy merging process each and every time.