Numbers
Enter text and numbers in Numbers on Mac
You can add content to a table in several ways. You can type directly into cells, copy and paste content from somewhere else, or let Numbers complete patterns for you with autofill. You can always edit or clear a cell after you add content to it.
Note: If you can’t modify a table, make sure it’s unlocked. Click the table, then choose Arrange > Unlock (from the Arrange menu at the top of your screen).