A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Hello SJH,
Did you try already the most simple actions?
1/ Click once on the chart to select it
2/ Then click again on the specific element you want to change (e.g., chart title, axis labels, legend).
You should see a bounding box around that element
And then, by the right button of the mouse please find the Font option