Which books would help to learn the whole advanced excel course in 15 days?
Rajesh Pathak
There are more than thirty small and big topics in Advanced Excel and many of these are too vast to complete in few months, forget days. So, learning whole course in 15 days is not possible.

If I talk about Excel functions, there are more than four hundred functions in Excel, and you don’t use all of these.

It would be better if you talk to your boss and office seniors to know which advance excel skills are required in your office that you need to master. Then only you can move to the right direction.