If you are looking for a best batch conversion tool to Convert Outlook Offline folder to MBOX, then you should be used OST to MBOX Converter tool. This software provides a trial version for the users so that they can check working nature and functionality of the tool. Users can transfer multiple OST files into MBOX within a single process. Integrated with high- tech and user-friendly features, so that a novice person can also easily handle this tool and convert outlook offline folder with attachment. The batch OST file to MBOX Converter tool supports all windows ( 64 bits & 32 bits) OS platform. Simple GUI is suitable for both technical and non-technical users. The tool supports OST files of all MS Outlook editions like that- 2021, 2019, 2016, 2010, 2013, 2007 etc.