Which website to use for downloading Microsoft tutorial program particularly Word and Excel?

I am trying to download the Microsoft tutorial program from the website. But I do not know which website is the trusted source. I would like to learn how to use basic Word and Excel programmes via the Microsoft tutorial program.

Which website to use for downloading Microsoft tutorial program particularly Word and Excel?
Excel tutorials


http://www.baycongroup.com/el0.htm


http://www.cpearson.com/excel/topic.htm


Word tutorial


http://www.baycongroup.com/wlesson0.htm
Reply:Try the link below.
Reply:Why don't you just click under Word on Help (or press F1). There you will find help with Word, and it also connects you to the Microsoft Website, where you find tutorials.