Click and highlight the area you would like to add alternating colours to.

In the "Home" tab, click "Format as Table."

Select a format that has alternating rows.

Specify the data range you'd like to apply the formatting to, then click "OK."

This guide provides a simple step-by-step process on how to color alternating rows in Excel. By following these instructions, users can easily enhance the visual appeal of their Excel spreadsheets, making it easier to read and analyze data.