Convert a PST file to MBOX file format with this PST to MBOX Converter Software. This software quickly converts large PST files to MBOX files with no file size restrictions. The software offers a free trial version for migrating a few addresses, as well as massive file migration when users can migrate several files without any errors. It GUI is very simple and easy to use by any users. Try it free trial version before using it to understand the software’s functions.