This blog is started in 2007 by Purna Duggirala and today has 350+ articles and tutorials on using excel, making better charts. The blog is famous for awesome tips, tutorials, excel products and online excel school.
About Author (Purna Duggirala) : Chandoo is his nick name and his domain name too. He is Microsoft MVP since 2009. He is an ENTREPRENEUR and carry great Data analytics and visualisation skills. He has developed many useful templates and dasboards which can be downloaded from his blog. You can know more about him by visiting his website.
THANK YOU Chandoo for managing this great blog. I have personally learned a lot from your blog.