Right-click the cell(s)/row(s)/column(s) you want to copy the format from.
Select Copy
Right-click the cell(s)/row(s)/column(s) you want to apply the format to.
Select the Paste Formatting option
Select the cell(s)/row(s)/column(s) you want to copy the format from.
Alt, H, F, P
Click the cell(s)/row(s)/column(s) you want to apply the format to.
Select the cell(s)/row(s)/column(s) you want to copy the format from.
Ctrl+C
Click the cell(s)/row(s)/column(s) you want to apply the format to.
Ctrl+Alt+V, T, Enter
Select the cell(s)/row(s)/column(s) you want to copy the format from.
Ctrl+C
Click the cell(s)/row(s)/column(s) you want to apply the format to.
Alt, H, V, S, T, Enter
Select the cell(s)/row(s)/column(s) you want to copy the format from.
Ctrl+C
Click the cell(s)/row(s)/column(s) you want to apply the format to.
Alt, E, S, T, Enter
Select the cell(s)/row(s)/column(s) you want to copy the format from.
Ctrl+C
Click the cell(s)/row(s)/column(s) you want to apply the format to.
Shift+F10, S, R