If user is facing problem to split PST file so i recommend KDETools Outlook PST Splitter Tool. The Splitter maintains the original structure of mailbox items such as Contacts, Notes, Emails, Attachments, Calendar, and etc. User can Save the PST file at the desired location on the system. User should try this software.

VISIT HERE: https://www.kdetools.com/pst-splitter/