Where practicing Excel? — Audrey Lucazeau

This website offer a lot of tutorials to discover data base manipulation in Excel. If you already knows how to use Excel for analyse data, it will be more a way to have revision than a source of learning.

But the functions (listed by category) are a great help when you have a function on the tip of your tongue.

Note : The website propose a large field of tutorial for data analysis, particularly on SQL, PostGre SQL, and MySQL.