The GainTools Merge PST Software for merging bulk PST files in a few minutes. Users can select to merge by choosing specific items or folders from each Outlook PST file without any error. This tool is useful to all users, like Technical or Non-technical. This software provides a preview of the PST file before merging your PST data. This tool gives users full control over what they merge and how. This app supports all Windows OS versions like 11, 10, 8.1, 8, 7, XP, and Vista. It can merge unlimited PST files without limitation & size issues. It works even if you don't have MS Outlook installed. It also offers a free trial version for all new users.