You may not know or just try to recall this keyboard shortcut that lets you immediately change the case of selected text in a Word document, if everything is in capital letters and you want it in small letters or in title case, etc.
Here you are:
Press Shift+F3 and keep on pressing it until you find the case that you need. Shift+F3 will let you cycle through ALL CAPS, all lowercase, and All Title Case.
For a much more convenient way, get the free Case Transformer, a powerful utility that works with all text editors, Notepads, Text boxes, wherever there is editable text, transforming the case into UPPER, lower, Sentece case, Title Case, even iNVERTED.
