InQUit OST to PST Converter can help you to split the large-sized PST files into small bits as per your needs. This tool is design to satisfy all your needs of data conversion. You can easily convert your data into different formats like PST, MSG, EMLX, MBOX, vCal, vCard etc. This tool also shows the preview of the conversion before the actual conversion is done. I would suggest you to first try the free demo version of this tool to have a better idea about this tool.
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