This free MS_Excel tutorial app covers in detail basics, advance and Important shortcuts.
+ Basics: range, formatting, data validation, keyboard shortcut, formula & functions, protection, templates etc.
+ Functions: logical function, count and sum function, look up & reference function, statistical functions, financial formulas, formula error and array formulas
+ Data analysis: conditional formatting, charts, sorting, filters, pivot tables, what-if-analysis etc
It let you learn not only by written material but our app has a great deal of pictures to make sure you understand everything.
In addition, content of app presented clear, the simple interface, the quick manipulation, particularly very small capacity, you absolutely can safely download and install on the smart device by yourself.

* Feature:
+ The interface simple
+ The small capacity, suitable with many smart device nowadays
+ This app is free
+ Reserved for Android operating system.
+ The sufficient content, clear.

Good lucky!