The X-axis, which is the horizontal axis, on most Excel charts does not use numeric intervals like the vertical Y-axis does. The X-axis contains either strings of text or a date under each set of ...

The Switch Row or Column feature allows you to swap data over the axis. Learn how to switch Rows and Columns in Microsoft Excel.

Naming Basics Best practice recommendations are to create a chart placing independent variables on the horizontal, x-axis and dependent variables on the vertical, y-axis.