RMS level graph as an export?

It is the third option, Ramsete Echogram (*.prn)...
I was referring to the Aurora for Audition version, of course. As always, the version for Audacity is slightly different (and less functional, in my opinion).
In the Audition version, also the Time History Analysis Aurora plugin features an "export to file" function, which can be used either for exporting the table of results, or the 1-ms time history of RMS values.
These features are not available (yet) in the Audacity version of the Time History Analysis module...