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.
A lettered bar appears above the columns and a numbered bar appears to the left of the rows.
Do any of the following:
Select a single row or column: Click the bar for the row or column you want to select.
Select multiple rows or columns: Click the bar for a row or column, then drag a selection handle (a white dot) to encompass the rows or columns you want.
Command-click row or column bars to select nonadjacent rows or columns.
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 to undo the action.
Select nonadjacent cells: Click a cell, then Command-click any other cells.