Cortex API: Is training data saved to the hardware or is it stored in a file?

When I train a command and accept the training, where does the training information live? In the headset itself? In a file?

I can see that the Cortex API documentation contains the following statuses on the “setupProfile” method:

“create” create new training profile
“save” save current training data to profile
“load” load training data from profile
“upload” upload training profile to server
“delete” remove training profile on the local machine

When I “save” the profile, does it get stored in the headset?
Also, when I “upload” it. To what “server” does the documentation refer to? How do I download it back again?