To change Gridline color in Excel, use Excel Options, apply a custom-colored border to the cells, or apply a custom line color. Full details here.

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

Microsoft Excel 2007's conditional formatting feature allows you to format cells based on certain criteria. As an example, you might want the row color to change based upon a credit or debit on a ...

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.