Converting OST files to MBOX format is not easy task because both are completely different files, which supports their respective email clients. In this situations, ZOOK converter for OST to MBOX has come up as boon for those users who wants to convert OST files to MBOX format. It is dedicated tool to convert unlimited OST files to MBOX format with complete mailbox data and attachments maintaining all data integrity and folder hierarchy. This tool comes with wide range of features and simple interface, which makes it an ideal and reliable tool to convert OST to MBOX. Using this tool, you can any size of OST files. It is Windows based tool thus users can smoothly install and run it on Windows 11, 10, 8.1, 8, 7, XP, Vista and all below versions.