I have been a professional Excel developer since the 80's.
I have also co-authored the second edition of the book "Professional Excel Development: http://www.amazon.com/Professional-Excel-Development-Definitive-Applications/dp/0321508793/ref=zg_bs_4047_5
I run my own blog http://www.wintools.se/blog/ which focus on various subjects related to software development.
I have been awarded with the MS Excel MVP award 2010 - 2012.
I live in Östersund, Sweden.