I’m not sure I entirely understand your question, and I have only Excel 2007 to play with, so my findings might be of no value to you.
But I did accomplish something that seems to be what I guess you want:
You obviously already know how to create the scatter chart. What I did next was:
- Click somewhere in the chart. (Remember that Microsoft Office 2007 and above uses the “ribbon”. In Excel 2007, when you click in a chart, three new tabs appear on the ribbon: “Design”, “Layout”, and “Format”.)
- Go to the “Layout” tab.
- Find the “Labels” function group, and click on either the “Chart Title” or the “Axis Titles” button. They both have drop-down menus. The “Chart Title” drop-down menu lists “Centered Overlay Title” and “Above Chart”; the “Axis Titles” drop-down menu lists “Primary Horizontal Axis Title” and “Primary Vertical Axis Title” (and both of those have pull-right menus, which are self-explanatory).
I selected “Primary Horizontal Axis Title”; “Axis Title” appeared below the X axis.
- Click on the title.
- Click in the formula bar, and enter the value you want for the label.
Cell references must be fully qualified, so, in the above example, I used
Good luck finding the equivalent functions in Excel 2003.
(And if you do, please post them as another answer.)
Not added by OP. One way to to insert a label could be to add another 'series' (ie ColumnD above) move its legend, format to hide series marker and adjust other formats: