What steps are necessary to change series names in an Excel chart?

To change series names in an Excel chart, selecting the chart and navigating to "Design" to choose "Select Data" is the correct method. This option allows you to access the data series associated with the chart. Within the "Select Data Source" dialog box, you have the ability to edit the series names directly. By clicking on a series within the list, you can modify the name to whatever is appropriate for your data representation, making this method both intuitive and effective for chart customization.

Other options might not provide the necessary functionality for changing series names directly. Double-clicking the series may not yield the option to rename it in all versions of Excel, while right-clicking and selecting “Edit Series” may not be available depending on the chart type being used. Using the chart options from the File menu does not typically include functionalities related to editing the series names specifically. Thus, selecting the chart and accessing the "Design" and "Select Data" features is the most efficient way to achieve the desired outcome.