This document provides an overview and introduction to using Excel 2013 as a power user. It covers topics such as the user interface, entering and formatting data, formulas and functions, and database tools. The document is presented as a tutorial with sections titled to explain each topic and include "Lets Do It" sections with exercises to practice the skills covered. It is authored by Ali Abdollahi, an industrial engineer and computer software developer with over a decade of experience in Java development.