Thanks a lot for the suggestion. We have actually put that on the roadmap (Excel export of the report data) and it is not unlikely, it will be in the 1.0 release. So watch the next few updates.
Regarding the company logo, we are thinking about something like this but cannot make any promises at this point.
It would be very Handy to save a report to a file ..
For some users, it could also be very nice to have the ability to add company details and a logo to the report..