Want to to alternate row colors in Excel? You can apply color in alternate row & column in Excel spreadsheet using Conditional Formatting.

Excel's default color is already white, so you need only format every other column or row as gray to alternate between white and gray cells.

In case of an error, a triangle appears in the corner of the cell. You can change the Color of an Error Indicator from green to any other in Excel.

The default active cell format in Microsoft Excel isn't all that easy to see, but you can use this easy-to-implement code solution to change that.