I had no idea there was an Excel Online Summit.
I'm behind a firewall right now ... but when I get home, I'm going to give it a look.
I made the jump from Lotus 123 to Microsoft Excel when I had the opportunity to beta test Windows 95. I've been hooked ever since.
Have you looked at https://beta.steemit.com/communities yet? I think that an Excel Community would thrive!!!
Edit: I just watched your interview. You were amazing!!! "The most valuable upvote on the web". I think you almost made Sohail's brain explode!!!!