It could be called the current cell.
At any moment in time, at least one cell has to be selected in Excel. It is known as the active cell. There has to be a focal point so that data or formulas can be typed in. Even when more than one cell is selected, there is only one active cell. Which cell is the active cell can be changed at any time, but there always has to be an active cell. If there isn't then, before you do anything, you would have to make a cell active. Cells are fundamental to Excel so there has to be an active cell at all times.
the active cell
As you type, Excel displays the entry in the FORMULA BAR, and also displays the active cell reference int he Name box on the left.
Yes you can.
Yes, the active cell is outline in black.
active cell
At any one time you can only be working on one cell in Excel, like when you are typing data. Even if you have many cells selected, only one can actually be used. That cell is the active cell. All other cells are inactive. So an inactive cell is any cell that is not the active cell.
If you select one cell, it will be active. However, if you select multiple cells at once, only one can be the active cell. That is usually the cell you select first.
A heavy border with a small box in the bottom right corner, known as the Fill Handle.
cell contents
yes
To format a cell in excel right click on it, then on the thing that pops up click on format cell