Have you ever inherited a Word document all typed out in CAPITAL LETTERS?  According to the Disability Discrimination Act text in capitals is more difficult to read as letters are harder to recognise.
So what do you do if you receive a document of 7 pages all typed in capital letters?
Well Word has a handy function to change case, and if you wanted to change it all this is what you do:
1. Select all the text (Ctrl +A)
2. Select Format from the menu at the top and then Change Case
3. Select the option you require and click OK

Sentence case =  makes capital letters for the beginning of sentences only and the rest lower case
Lower case = makes all text lower case
UPPER CASE = makes all the text CAPITAL LETTERS
Title Case = makes the First Letter Of Each Word  A Capital Letter
tOGGLE cASE = swaps your CAPS to lower case and lower case to CAPS