MailsDaddy PST Split Tool is one of the most popular application, which easily divides over-sized Outlook PST file into multiple small PSTs. It easily adds multiple large PST files at a time and breaks to multiple small PST files. It can provide four options to split the PST data- by date, by size, by folder, and by id. The user can choose an option by his need. It easily performs with all editions of Windows OS.