If you want to convert the Outlook PST file into MBOX, download this software SysInspire PST Converter, it can repair your corrupted PST data and convert converts it into MBOX, MSG, EML, EMLX, HTML, Zimbra, and VCF, etc. Extract data between the selective dates with the help of the Date-filter feature. It has no size limit restrictions. To open PST data there are no requirements of installing MS Outlook on your computer. The PST Converter also supports Windows10 and others.