To Truncate large PST files into small parts then I would suggest the KDETools PST Splitter. It breaks PST files into small parts according to date, size, year and folder within a few minutes. Split Outlook PST files in ANSI and UNICODE formats. Split PST files without installing of MS-Outlook. Supports in all Version of Windows and Outlook. Demo Version is also available.
More Info: https://www.kdetools.com/pst-splitter/
Open MS Outlook and then open the PST file that you want to move.Click on File → Cleanup Tools box → Archive.Archive dialogue box will appear on the screen. ...Select the folder you want to move. ...Browse to select the location of new PST to store items and click OK
To split PST file, many solutions are available but one should choose safe solution therefore I would like to recommend Split PST Tool that comfortably split any large PST file into smaller parts with 100% data safety. Moreover, the software works without installing Outlook. You can split any large PST file based on size, year, and folder in a few minutes with this application.
Visit here for more info: https://www.osttopstapp.com/split-pst.html