Graphs in Microsoft Excel typically chart time on the horizontal axis. Time is the independent variable in most relationships and dependent variables appear on the vertical axis. Some charts ...

How Excel Charts Work A chart has an x-axis range and a y-axis range to show the correlation between two different data sets. The x-axis is the horizontal category line.

Learn how to create a Timeline in Excel using a Column Chart, SmartArt, or an Excel Template. Timelines are essential for planning and communicating time-based data.