To batch export EML to MBOX with attachments, TrusVare EML to MBOX Converter is great software. It lets you work smoothly on Windows 11, 10, 8, 7. This tool exports EML files to MBOX quickly without losing data, while also preserving attachments correctly. Its key feature is batch conversion, allowing you to convert multiple EML files to MBOX at once. This tool is suitable for Outlook Express, Windows Live Mail, Thunderbird, and other EML file-supporting clients.