Split PST Tool to acquire better speed and working of the MS Outlook. SysTools Split PST Software gives you a chance to Split MS Outlook Files 2010, 2007, 2003, XP, 2000 or 97 easily and quickly. Split PST Utility does not split oversized or corrupted MS Outlook PST Files. Split PST Tool divides MS Outlook PST files by size, by folder, by selected folder, by date, bi-yearly.