To indent text in Excel cells, you can use the Increase Indent button, which is usually found in the Alignment group of the Home tab. Simply select the cell or cells you want to indent, go to the Home tab, and click on the Increase Indent button, which looks like a few lines indented to the right. You can also use the Decrease Indent button to remove indentation if needed. Alternatively, you can also use the keyboard shortcut Alt + H and then 6 to increase the indent, and Alt + H and then 5 to decrease it, this way you can easily adjust the indent level as per your requirement.