Customization is the ability to personalize the behind the scenes activity in Word. Adjusting these preset settings allows a more efficient use of Word.
You can alter the Quick Access Toolbar (QAT) menu by clicking on the drop-down icon on the right side of the menu.
Options may not be set to your liking or usefulness. In MS Office 365 go to File -> Options.
Below are some options you may want to alter:
You may want to alter Word's native AutoCorrect options as well as turning off the ordinal with superscript option. Go to File -> Options -> Proofing -> AutoCorrect Options -> AutoFormat.