PST splitter MS Outlook tool to split MS Outlook PST file into numerous pieces. This PST Splitter Software splits all the items of MS Outlook Like contacts, emails, calendars, journals, tasks, and notes to smaller PST files. Few clicks on split PST files and split MS Outlook PST file into multiple parts. Splitting PST file has advanced features which split all kinds of MS Outlook PST items such as: split by date, split by size, split by yearly.