If anyone wants to split the Outlook any version then I would suggest the best Solution to trying the use of KDETool PST Splitter.
Split PST files based on Date.
Break PST files based on Size.
Truncate large PST files by Year.
Split PST files by Folder.
Support all Version of Windows and Outlook.
Easily work within ANSI and also UNICODE formats.
No needs for MS-Outlook installation.
Breaks large PST files with selected date ranges.
Demo Version easy to download.
If you want to break large the PST items in small parts, Here I recommend you try the Split PST Tool that can easily split large PST items according to date, year, size and folder option without installing MS-Outlook in your system. It split both ANSI and UNICODE formats. It supports all windows and Outlook versions.
Visit here for more info: https://www.osttopstapp.com/split-pst.html