A correctly formatted document will have a much bigger impact than one with inconsistencies. Let's review how to clear formatting in Word.

If you cannot remove highlights or shading from a Word document, you can first use the Clear All Formatting option. It will clear all the formatting done to the selected text including highlights.

There’s no need to keep unused styles in a Microsoft Word document, especially if there are a lot of them. Instead, use this VBA procedure to remove them.