saving custom tunes to computer

[camptime]

I received the email yesterday that my calibrations were ready.
This morning I updated my Gryphon from Targeted Functions and all appears to be good. I have not yet reinstalled the unit back into my truck but will later today.
Question I have is, is there a way I can download or save the custom files to my computer in case I need them for the future? I can't think of a reason why I would need them, but I just might.
Also, are the custom files stored on the PHP server for future retrieval or not?

Thank you,
John