Excel: How To Convert Data Into A Chart/Graph - Rowan University 7: To add axis titles, data labels, legend, trendline, and more, click the graph you just created. A new tab titled "Chart design" should appear. In the upper menu of that tab, you should see a section called "add chart element." 8: In "add chart element," you can customize your graph to your liking . STEP 9: Don't forget to save your work!