Trim PST File - Version 4.0 An earlier version of MS Outlook which follows ANSI file format has a file size limit of 2GB. If this fixed parameter exceeds it can bring destruction to the saved data. So, the helpful solution is cropping heavy PST files into small parts with SysTools split PST software program. Whenever Outlook creates issues while working on it like slow speed, continuous Outlook crash so it is advised to break PST files into small sized files. Split PST software split UNLIMITED PST files into smaller parts. PST Split tool easily splits all Outlook item such as contacts, emails, calendars, journals, notes. There can be another reason also to Split Outlook Archives i.e. large size of the PST file affects the performance of Outlook in several critical operations like moving, searching & the like. Trim PST File program is a simple & spontaneous tool that acts as a PST File Splitter to easily perform Outlook Split, email or any other item of Outlook PST of large size into smaller sized PST files. Splitting PST File supports to split both configured & orphaned Outlook PST files. Break PST