Can you fit a title of a class and a comment about that class in one cell (EXCEL)?

Question

but not making the cell or the row stretch.....have it done like this:

Science Fiction
"New department. Create promotional ads."

(one on top of the other)

Answer 1

Type the first line
click Alt+Enter for a new line in the same cell
Type line 2
go to the letter above the column
double-click your cursor on the right dividing line - this will make it autofit