Using the Format Painter
Most of the MS Office applications have a Format Painter control which you can use to copy all the formatting from one place to another. That’s ALL the formatting in one go. But just once.
What is not so obvious is that when you double-click the Format Painter you can repeat your formatting by continuing to click on additional items. The Format Painter stays on until you deliberately cancel it by pressing the ESC key or single-clicking the control.
To use the Format Painter in Excel, apply formatting to a single cell or a range of cells and then either click (to paste the formatting once) or double-click. Now, select another cell or range and all the formats (fill colours, borders, fonts, number formats etc.) are copied from the source to where you have just clicked. As you do this you will see a paintbrush image attached to your mouse pointer.