PST files have an upper size limit, for ANSI file format, the upper size limit is 2GB, and for Unicode, it is 50 GB. Oversized PST may cause unresponsive Outlook and long time consumption for the response. Hence, it is necessary to split large PST files. For this, Shoviv PST Splitter Software is a one-stop solution. It keeps the Meta properties and offers four options: Split by Size, Split by Date, Split by Year and Split by Folder. Users can split large PST files of both types (ANSI and Unicode). This tool is compatible with all MS Outlook and Windows versions. Downloading its free-trial version is recommended.
Read more - https://www.shoviv.com/blog/how-to-split-pst-file-in-outlook-manually/