Fill Handle

Bottom right corner of a selected cell or area.

1. Select the cell(s) containing the content you want to use. The fill handle will appear as a small square in the bottom-right corner of the selected cell(s).

2. Click, hold, and drag the fill handle until all of the cells you want to fill are selected.

3. Release the mouse to fill the selected cells.

Just to clarify, when you put the cursor on the bottom right corner, it will change to a little black cross.

That's how you know you're in the correct position to drag.

Yes, the cursor changes from the normal Excel cursor (a white outline cross) to a thin black cross

1. Normal cursor

2. Fill cursor

Thank you all.