To create a chart, you need to select at least two cells in a range of data.
two cells
Explanation:
In MS excel end user can create graph through insert menu and select chart. In MS excel end user should have enough data in each cells to generate graphs.
In MS EXCEL end user can create bar graph, pie chart, and line graph. Normally graph means comparing either two sets of values or range of values.
If we select one value it is just graph which gives performance data.
Purpose of graph is to do analysis in graphical presentable manner which an organization can under visual rather than comparing values.