Hey Pascal,
As far as the export from Access, you would need to have your dealer put in a support case and our support team could see if this is possible or put in a request to the Access team if not.
As this post was set up as a question, it's not possible to put an attachment. This is something I've requested from the company that manages this platform for future enhancement.
I don't see an email associated with your account. If you don't want to provide this you will just need to create a new thread, but as an open ended discussion, not a question and we can attach files this way. Sorry for the inconvenience, this is something I hope to have changed in the future.
If you do decide to create a new thread, please put
@Shane Lyons so I'm made aware when its created.
At this time I don't think there is a custom export that includes the Mean angle, however if I can't figure out a way to get this exported, I'll have an enhancement request created as this should be an option in the custom settings.