You can split your larger PST file into multiple smaller PST files by using this Regain PST Splitter Software. This Software is an advanced Software which provides safe and easy solution to split large PST file into multiple small PST files without tampering any content. Using this tool, users can split PST file by size, by date, by year, and by folder. This Software also allows user to Split Password protected PST file without any issue.

Checkout this Software free trial version from here: Split PST