A large PST file can create many big troubles for its users. Users need to reduce PST file to avoid corruption due to oversize. Outsized PST split is best utility to deal with oversize PST file. The software split large and heavy PST file into smaller parts easily by four different options i.e. Date, Year, Folder and Size. PST splitter supports all versions of MS Outlook 2000, 2003, 2007, 2010 (32 bit and 64 bit).