Large size PST really creates problems to Outlook users during accessing it. Outlook users required to reduce large size PST file as soon as possible to avoid corruption due to over size. I would like you to suggest most imperative tool named Split PST that help users to split any size of PST file into multiple smaller parts. You can split large PST into multiple smaller parts by Date, Year, Folder and Size by using split PST tool. The software creates NEW PST for each splitted folder, you can save those folder at safe location at your end. The software supports all version of MS Outlook 2000, 2003, 2007, 2010 (32 bit and 64 bit).