You can take the help of this KDETools PST to MBOX Converter Software and Convert PST to MBOX file format with all data files. This software also offers a free demo. Users can easily convert PST data to HTML, PDF, MSG, EML, EMLX, and others. Advanced converters can convert highly encrypted, password protected and corrupted files in just a few steps. The 'Message Filtering' option helps users to select MBOX items between two dates.

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