If you want to convert EML to MBOX on Windows 11, then I advise you to use the TrustVare EML to MBOX Converter. This tool lets you convert EML files into MBOX format without losing any attachments. It can export all email attributes, such as to, cc, bcc, subject, date, and other attachments, into MBOX. During the process, it keeps the layout and metadata of emails. It also works with all versions of Windows, from Windows 11 to Windows 10, 8.1, 8, 7, and earlier. Past technical expertise is not required while doing the conversion, since it has a basic user interface. The software works on its own and doesn’t need additional tools to operate. Test the free demo of this tool and explore its capabilities.