In the Legend Entries, select the data series you want to rename, and click Edit In the Edit Series dialog box, clear series name, type the new series name in the same box, and click the OK The name you typed (new name) appears in the chart legend, but won't be added to the ExcelExcel chart changing all data labels from value to series name simultaneously I am having this problem in excel stacked column chart while trying to change the labels My graph has multiple columns and hundreds of stacked values (series) in each column By selecting chart then from layout>data labels>more data labels options >label options ChartSeriesNameLevel property (Excel) ;
Working With Multiple Data Series In Excel Pryor Learning Solutions