If you want to know the process of "Converting PST to MBOX Converter," I'd like to suggest the tool eSoftTools PST to MBOX Converter Software. It works with a very simple and clean graphical interface to make smooth PST to MBOX file Conversion. Both are accepted ANSI and UNICODE PST files for conversion. Both new and old versions of Microsoft Outlook are supported by the program. All customers of PST to MBOX Converter can use the free demo to easily move up to 25 emails from each folder without having to pay anything.
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