To import EML to Office 365 account, you can use the BitData Migration EML Converter. This reliable tool allows you to seamlessly migrate EML files to Office 365 and other platforms like Gmail, Thunderbird, Rediffmail, Zimbra, Windows Live Mail, PST, PDF, MSG, MBOX, ICS, CSV, HTML, DOC, and more options without any data loss. The software also offers a preview feature to view EML files before conversion. It supports all Windows OS versions, including Windows 11.