This app includes all essential information for learning Excel you need to know. Like:

Excel Basics
Getting Started with Excel
Creating and Opening Workbooks
Saving and Sharing Workbooks

Cell Basics
Modifying Columns, Rows, and Cells
Formatting Cells
Worksheet Basics
Page Layout
Printing Workbooks

Formulas and Functions
Simple Formulas
Complex Formulas
Relative and Absolute Cell References
Functions
Working with Data
Freezing Panes and View Options
Sorting Data
Filtering Data
Groups and Subtotals
Tables
Charts
Sparklines
Doing More with Excel
Track Changes and Comments
Finalizing and Protecting Workbooks
Conditional Formatting
PivotTables
What-If Analysis

This app also include Excel Keyboard Shortcuts, so that you can increase your productivity.