How to Convert Uppercase to Lowercase in Microsoft Word
If you type something in all caps on accident -- or on purpose, and then decide it doesn't look right -- you don't have to retype the entire thing. Instead, Microsoft Word offers a "Change Case" feature that easily switches uppercase text to lowercase text. You can also choose to capitalize just the first letter of every word or just the first letter in every sentence.
Highlight the uppercase text you intend to fix. Click at the beginning of the text, hold down the mouse button, drag the cursor to the end of the text and then release the mouse button.
Click the "Home" tab on the left side of the Ribbon.
Click the "Change Case" icon in the "Font" group to access the "Change Case" drop-down menu. This icon displays a capital "A," a lowercase "a" and a downward arrow. In Microsoft Word 2010, this icon sits in the top row, near the right corner. In Microsoft Word 2007, it sits in the bottom row, near the center of the right side.
Click "lowercase" on the "Change Case" drop-down menu.