If you’ve copied text from another document and it’s not formatted the way you want, or it has some strange or mixed up formatting, you can easily remove all the formatting from the text and return the text to the default style.
To do this, select the text from which you want to remove the formatting and click Clear All Formatting in the Font section of the Home tab. The text returns to the default Normal style.
You can also Clear All Formatting in PowerPoint presentations using the same procedure.
An even quicker method of removing formatting in Word and PowerPoint is to select the text and press Ctrl + Spacebar to remove all character formatting or Ctrl + Q to remove just the paragraph formatting.