chandoo.org › wp › change-data-labels-in-chartsHow to Change Excel Chart Data Labels to Custom Values? May 05, 2010 · Now, click on any data label. This will select “all” data labels. Now click once again. At this point excel will select only one data label. Go to Formula bar, press = and point to the cell where the data label for that chart data point is defined. Repeat the process for all other data labels, one after another. See the screencast.