When working a word file shared with others, you often need to track the changes to alert other people where you have changes. It is a very convenient tool which will save you tons of time. Please see below for details:
Step 1: Click the "Review" tab from the ribbon;
Step 2: Click "Track changes" to turn on the track changes functions;
Step 3: Any changes you made will be in red.
Step 4: You can accept or reject a change, or all changes.
To accept one change, click "Accept" in the review tab; or to accept all changes, click "Accept All Changes" from the drop-down list.
To reject one change, click "Reject" in the review tab; or to reject all changes, click "Reject All Changes" from the drop-down list.
Step 5: If you want to read the contents by not showing the changes, you need to click the "All Markup" box, then select "No Markup" from the drop-down list.