From Jan Berinstein, the expert behind Compusavvy:

Even if you have been using Word for a long time, you might not realize how easy it is to remove paragraph and/or font formatting from text. This post highlights a few different methods for stripping formatting, all of which work in recent versions up through and including Word 2016. You can clear paragraph and/or font […]
https://compusavvy.wordpress.com/2015/10/26/clear-paragraph-and-font-formatting-in-word/