Click the table, then click
in its top-left corner.
Three selection handles (small white squares) appear on the edge of the table when it’s selected.
Click the table.
Letters appear above the columns and numbers appear to the left of the rows.
Do one of the following:
Select a single row or column: Click the number or letter for the row or column you want to select.
Select multiple rows or columns: Click the number or letter for a row or column, then drag a selection handle (a white dot) to encompass the rows or columns you want.
To select nonadjacent rows or columns, Command-click any row numbers or column letters.
Select a cell: Click it.
Select a range of cells: Click a cell, then drag a selection handle (a white dot) any direction to encompass the range of cells you want to select.
If you drag the yellow dot, you copy the cell contents to the rows you drag over. If you do this accidentally, drag the yellow dot back to its original position, or press Command-Z on the keyboard to undo the action.
Select nonadjacent cells: Click a cell, then Command-click any other cells.