If you apply a conditional format to one or more cells, and want to apply that format to other data on your worksheet, use Format Painter to copy the conditional formatting to that data.
Follow these steps:
Click on the cell that has the conditional formatting you want to copy.
Click Home > Format Painter.
The pointer changes to a paintbrush.
Tip: You can double-click Format Painter if you want to keep using the paintbrush to paste the conditional formatting in other cells.
To paste the conditional formatting, drag the paintbrush across the cells or ranges of cells you want to format.
To cancel using the paintbrush, press Esc on your keyboard.
Note: If you’ve used a formula in the rule that applies the conditional formatting, it may be necessary to adjust relative and absolute references in the formula after pasting the conditional format. For more information, see Switch between relative, absolute, and mixed references.