Here is the best and most effective way to Convert OST file to Thunderbird/MBOX format with the use of Softaken OST to MBOX Converter Software. With the use of this program, you can easily convert your bulk of OST file to MBOX format so you can easily open your OST file in Thunderbird. To finish the process, users just need to follow a few easy steps. This application is so easy to use without any technical expertise user can use this application in their Computer Systems. All Microsoft Windows editions are smoothly works with this software. Additionally, you can also try the free demo version of this Utility to know more.