It is not unusual to need to enter a series of numbers within a range of worksheet cells. For instance, you may need to enter a series of numbers in the first five columns of a particular row, or you may need to enter information just in a range of ten cells in a particular column.
To sequentially enter information in a range of cells, you should first select the cells. Notice that Excel leaves the top-left cell in the range as the input cell (it is white and outlined). The rest of the cells in the range are shaded, to show that they are selected.
Now all you need to do is start entering numbers. When you do, the value you enter is entered into the input cell. When you press Enter at the end of the value, Excel saves the value and moves the input cell to the next cell in the selected range. Excel will move the input cell either left to right, top to bottom or top to bottom, left to right.