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Handling a large PST file is not an easy task for non-Outlook users. There is a chance the file will be corrupt and then all the data will be lost and recovering is not everyone's cup of tea. Seeing this problem we have introduced a tool EmailProHelp PST Splitter that can easily split large PST files above 50 GB into smaller PST files. his software even converts OST files to MBOX, EML, EMLX, PDF, PST, MSG, and YAHOO.