If you have ever left your caps lock on and then looked up to see you have typed lots of text all in upper case, this is one for you! You do not have to re-type everything, simply:
If you do not want to use a short cut, look for a button on the home tab with a symbol that looks like this "Aa" and it will do the same thing.
This trick works in - Word, PowerPoint, Outlook and other places that allow you to format. If you need help with Excel data please use the functions: