Aren't you talking about showing the text upside down i.e the mirror
image? I
was talking about the text shown in a vertical line with the first
character
either as the first or the last character in the pile.

Perhaps you should read the subject line more closely. As Garfield says,
Word can do 90 degrees left or right. It can't do upside down or mirror,
and -- relevant to the OP -- it can't do diagonal (ie 45 degrees).