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.

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.

How to Change Series Data in Excel. To update your Microsoft Excel worksheet, you can add a data series to the source data and also update the worksheet chart to make your data meaningful to your ...