I think you may be referring to this:

put some labels in B1:F1, eg Monday, Tuesday, Wednesday etc, then
highlight those cells and click on Format | Cells | Alignment tab,
then in the Orientation panel click on the red button to align the
text at 45 degrees. Then click on the Border tab and click on Outline
and Inside.

When you click OK the cells will look as if they are aligned
diagonally.

Hope this helps.

Pete

On Sep 24, 12:42*pm, Susan wrote:
Someone said they have seen where the actual cells in a row have been aligned
diagonally, is this possible? *if so how do we do that?

Thank you!

Susan