Yes, you want to merge your multiple PST Outlook files. You can use Softaken Merge Outlook PST Software for merging your multiple PST data into a single file format. This application is easy to use. This software does not lose your original PST file without your permission. This software provides Megre password protection PST files into a Single PST file. This application supports all Windows versions. You can use this software without MS Outlook installation, and it gives a free demo version.

Visit here: https://www.softakensoftware.com/merge-outlook-pst.html