Yes, you can plot XYZ points in Excel using a 3D scatter plot. Here's how you can do it:

1. Enter your data in three columns: X, Y, and Z. Make sure that each column has a header row.
2. Select the data range that you want to plot, including the header row.
3. Go to the "Insert" tab on the ribbon and click on "Insert Scatter (X, Y) or Bubble Chart".
4. In the drop-down menu, select "3D Scatter".
5. Excel will create a 3D scatter plot with your data. You can rotate the plot by clicking and dragging on it.
6. To customize the plot, right-click on it and select "Format Chart Area". From here, you can change the chart type, add titles and labels, and adjust the axis scales.
7. If you want to add a trendline to your plot, right-click on a data point and select "Add Trendline". Choose the type of trendline you want and adjust the settings as needed.

That's it! You now have a 3D scatter plot in Excel. If you have any questions or need further assistance, feel free to ask.