Download advanced and simple tool to convert OST to MBOX. This OST to MBOX Converter is very simple utility for Windows users to convert and migrate emails from MS Outlook OST file to thunderbird MBOX file format. You can easily export all folder emails from OST file format to MBOX file format and open exported MBOX file format with multiple MBOX supported emails clients of Windows, Linux and MAC. This is free utility for testing purpose to check all features and functions. You can download free testing version and check with your healthy or corrupted OST file to PST file format to MBOX file format. You can easily open with Mozilla thunderbird and other email application and web application. You can install this OST to MBOX converter expert tool with Windows 10 to Windows XP. For more details visit Datavare Official website.