If you use IE it copies and pastes quite nicely with formatting and
everything (in either direction)
If you want to automate it send the innerHTML to the server with
GM_xmlhttpRequest, parse the table text using Xpath or just explode
and trim the rows and columns, then implode them into a CSV format
which would work in excel.
its alternatively possible to do it all in a userscript and have the
raw CSV data pop up in a new window that you can file save as file.csv
Neat idea for a script that would turn any table into a CSV format...
I would almost develop it if we are sure it doesn't exist....
Why i suggested IE copy paste was if you want colors and pretty stuff
like that would be a lot more complex to support in GM alone. CSV is
just plain text