To combine two PST files into one single PST file the best way is to use the Import/Export option of the Microsoft Outlook. Launch Outlook, on the menu bar, click on File,... moreTo combine two PST files into one single PST file the best way is to use the Import/Export option of the Microsoft Outlook. Launch Outlook, on the menu bar, click on File, underscore then Open and Export and finally click on Import/Export. Then, click ‘Import from another program or file’ and select the option, ‘Outlook Data File (. pst)’. Right click on the PST’s you want to merge, select ‘Include subfolders’, select the newly created PST as the option where you would want the PST’s to be merged to. It is effective for few files but may take a while if you are merging multiple PST.For a more efficient solution, you can more towards third-party software like Shoviv PST Merge tool for PST merge. This software also helps in merging PST files with full data integrity of the PST files that are being merged. It has support for batch merging which can be used to merge as many PST files as you may wish. It contains an interactive interface which ensure that even an ordinary user can operate... less
