When using Word track changes and comments when collaborating on Word documents. Track changes in Word to ensure error-free files.
If you edit a document without tracking changes, it's still possible to use reviewing features such as Accept and Reject. You can do this by comparing two versions of the document. All you need is the original document and the revised document (the documents must also have different file names).
The original and revised documents will appear in a pane to the right that you can use for reference (although you can't edit them). If you don't see the pane, click CompareShow Source DocumentsShow Both.