Whenever you are searching for best PST to MBOX Converter software then I would like to recommend you to use EmailsGuru PST to MBOX Converter software. It is most powerful and easy to use utility to convert multiple PST files to MBOX format. Users can easily import PST files to MBOX with 100% accuracy and safely. It does not matter how much big sized PST files you have! The software swiftly convert them without any error. Users can view all PST database files during conversion process. It supports 30+ MBOX based emails clients and works on Windows 10, 8.1, 8, 7, XP, Vista, etc. Users can know more about the features of the software by downloading free demo version.