To recover MSG files in Office 365, use a third-party tool like VSPL MSG to Office 365 Importer, upload the MSG files, select the mailbox, and start the import process.

To import MSG files into an Outlook 365 account, follow these steps:

1. Open Outlook 365 on your desktop.

2. Navigate to the folder where your MSG files are stored.

3. Select the MSG files you want to import.

4. Drag and drop the selected MSG files into the desired folder in your Outlook account (e.g., Inbox, Sent Items).

5. Outlook will automatically import and display the MSG file content within that folder.

This method allows for easy, manual import of MSG files without needing additional software.

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