Hello Connelly,
Thank you for your post. It is possible to save the raw EEG Data with 3D Brain Activity Map but the file will be in .BR file format. It is not in .EDF.
We do have an advanced software solution for Raw EEG data record – EmotivPRO https://www.emotiv.com/emotivpro/. It is a subscription based software which you can pro-actively manage your plan to use with. At introductory price of $79 for monthly subscription plus 15 day free trial, I would encourage you to subscribe it and experience the features inside. If it does not match your requirements, you can cancel by yourself before the recurring date.
We would have glad to have more discussion on this via our official channel by sending an email to hello at emotiv .dot. com. We are happy to assist!
Best regards,
Linh