You can select a table in a text document with a keyboard or with a mouse.
To select a table with the keyboard, move the cursor into the table, and then press Command Ctrl+A until all the cells are selected.
To select a table with the mouse, move the mouse pointer to a position just above and left of the table. The mouse pointer becomes a diagonal arrow. Click to select the table.
To select a row or column with the mouse, point to a position just left of the row or above the column. The mouse pointer becomes an arrow. Click to select the row or column.