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.

Colors on Excel Worksheet Tabs are a great way to organize them. We will discuss how to add or change the color in Worksheet Tabs.

This article provides step-by-step instructions for color customizing your drop-down list in Microsoft Excel.

How to Make Colors Change With Validation in Excel. Excel's conditional formatting tool applies formatting depending on cells' contents. Validation rules can change cells font, style, size or border.

You can use one of several Excel themes with predefined font families, color schemes and text fill effects and apply them to the whole spreadsheet.