If you looking for a software that helps to convert PST to MBOX so use this eSoftTools PST to MBOX Converter Software. It is simple and effective approach to perform PST to MBOX file conversion. It has a user-friendly interface that even non-technical users can understand and use this application without facing any problem. For new customers, a demo version is also available. PST files can also be converted to MBOX files for free, with up to 25 items per folder.