Simplest Method to Export Batch EML to Office 365
Download and open CubexSoft EML to Office 365 Converter to export batch EML to Office 365 at once. This software works on any Windows or Mac OS editions. It provides the double options like Select File(s) or Select Folder(s) to add the EML files. You can also utilize the checkbox options to select/deselect the EML files for the conversion. During migration process, resultant file can easily save in the desired location path for the future assistance. It supports all EML based email clients such as Windows Live Mail, Thunderbird, eM Client, MS Entourage and many more. All users can test its advanced features by using the free demo version. Its demo version permits to convert first 25 EML files/folder without any cost.

-
mike son commented
To smartly convert EML files to Office 365, use the smart BitVare EML to Office 365 Tool that is a reliable solution to migrate EML files to Office 365 account. The tool is effective utility to import EML files to O365 account with attachments. Using the tool, you can easily migrate EML files of Windows Live Mail, eM Client, Thunderbird, Windows Mail, etc to Office 365 cloud account. Download free demo edition to know about how to migrate EML files to Office 365 account without any cost. https://www.bitvare.com/eml/office-365.html
-
Jones Martin commented
To export batch EML to Office 365 without data loss, try a trusted solution i.e. BitData Migration EML Converter. This reliable utility supports batch mode which allows users to export multiple EML files to Office 365 account at the same time without missing any database. Also, it works flawlessly in all editions of Windows OS and macOS.
READ MORE- https://www.bitdatamigration.com/blog/transfer-eml-file-to-office365-with-attachment/ -
kanesmith commented
MacArmy EML Converter for Mac is a quick way to open EML file in various file formats such as Office 365, PDF, CSV, PST, MSG, Gmail, Yahoo, Thunderbird, IMAP, Gmail, etc. All attachments components remain the same while processing, also users can add and convert multiple files EML files conversion in a single round on selective basis. This tool enables conversion of EML that can be extracted from apps like Apple Mail, Thunderbird, DreamMail, etc. The software properly supports Mac Operating System like Ventura, Monterey, Big-Sur, Mojave, Catalina, High-Sierra etc. Free demo edition of the software can make conversion of 25 .eml files without any charges.
Read more: https://www.macarmy.com/eml/