The very first step is to download, install and launch the software on your system.
Select File or Folder mode and then Browse Outlook PST files from your system to the software panel. You can move the loaded PST files up and down through ‘Move Up’ and ‘Move Down’ buttons.
Click the Browse button and select a path of your system to save the resultant PST file.
Finally, hit the Merge Now button to start the process of combining PST files. It takes only a few minutes to provide results.