To convert EML to MBOX email files you can use the FixVare EML to MBOX Converter. This application is an effective choice to convert EML files to MBOX-based email clients such as Thunderbird, Eudora, SeaMonkey, Netscape and others. It allows you to convert bulk EML files into MBOX format using few mouse clicks. The user interface of this application is easy to use, which helps novices as well as technical users. You can safely convert your email file to MBOX without any data loss. Additionally it is compatible with every edition of Windows.