To change the X-axis values in Excel, you can follow these steps:
1. Open your Excel workbook and navigate to the worksheet containing the chart with the X-axis values you want to change.
2. Click on the chart to select it. The Chart Tools contextual tab will appear in the Excel ribbon.
3. In the Chart Tools tab, click on the "Design" tab.
4. In the "Data" group, click on the "Select Data" button. The "Select Data Source" dialog box will appear.
5. In the "Select Data Source" dialog box, you will see two sections: "Legend Entries (Series)" and "Horizontal (Category) Axis Labels".
6. To change the X-axis values, click on the "Edit" button in the "Horizontal (Category) Axis Labels" section.
7. The "Axis Labels" dialog box will appear. Here you can modify the range of cells that provide the X-axis values. You can either manually enter the range or click on the small spreadsheet icon to select the range from your worksheet.
8. After entering or selecting the new range of cells, click "OK" to close the "Axis Labels" dialog box.
9. Click "OK" again to close the "Select Data Source" dialog box.
10. The X-axis values on the chart will now be updated based on the new range of cells you specified.
By following these steps, you can easily change the X-axis values in an Excel chart to match your desired data range.