Comparing 2 word documents within MS word

Lately, I need to work on some contract stuffs and have many versions of the same document passing around as revisions are being made by different people. And I forget to turn on the "Tracking" features. Out of the blue, I thought if there is any software that could help to compare 2 word documents. Result from google tell me that features is within MS Word! It was the first time I know such feature exist! And MS Word for Mac also has this feature!

  To begin, first open the two documents to compare in Microsoft Word. Then click the “Compare” button in the “Compare” button group on the “Review” tab within the Ribbon. Then select the “Compare…” command from the drop-down menu that appears to open the “Compare Documents” dialog box.

credit: https://www.teachucomp.com/compare-documents-in-word-instructions/