The track changes mode is used to track, process, and store changes made to a document by you or other users. To start tracking the changes, you need to enable the Track changes mode first. You can view and process the changes when the mode is disabled.
The mode status is saved after you save a file. The document closed with tracking changes mode enabled will keep this property next time you open it.
To enable or disable Track changes mode, on the Toolbar, turn the Track changes toggle switch to
or
. When working in macOS, you can also select or clear the Track changes checkbox in the Tools > Display changes and comments command menu.