Outlook users has to face lots of problems in finding a specific mails , slow working speed of Outlook and more chances of corruption due to large PST files. Reduction of large PST is best option to deal such problems. Download Split PST software that helps users to divide large and bulky PST files into smaller parts. You can divide PST files by Date, Year, folder and Size. The software supports all version of MS Outlook (32 bit and 64 bit).