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.

How to Change Grid Line Colors on a Chart With Microsoft Excel. Grid lines add horizontal and/or vertical lines to your graph that aid in measuring graph values.

Next, tidy up the appearance of your text. Stick to clean, professional fonts like Calibri, Arial, or Times New Roman, and use consistent sizes—say 12pt for headers and 11pt for all other text. Align ...