You can enter data in your worksheets by typing it, by pasting it, or by using drag and drop to move or copy it. Excel also includes a feature called AutoFill that automatically fills in series data for you based on the input you've provided.
To enter data in a cell, first make the cell active by clicking in it or moving the selection rectangle to it. Then start typing in the cell. As you start typing, Excel displays an insertion point in the cell, and what you type appears in the cell.
When you've finished typing the contents of the cell, move to another cell in any of these ways: