The GainTools Merge PST Tool combines several Outlook PST files into a single file. This software ensures that all mailbox contents including emails, attachments and metadata, remain in their original condition during the merging process. Users can choose to merge several folders or entire files at once, giving them complete control over the process. The application removes duplicate objects to provide a clean output while keeping the original folder structure. It works with all versions of Outlook and Windows and supports ANSI and Unicode file types. Because of its speed and user friendly interface, this tool is suitable for people and businesses who manage large PST data files.