To make sure you have the table selected, click anywhere else on the document outside of the table the rows and columns labels should disappear. In Pages, click on the table, but make sure that you don’t have a single cell selected–if a single cell becomes outlined when you click on the table, then you’ve selected the cell. You can remove them now or you can remove them after you’ve filled the table with all the addresses you want labels for. Once you’re satisfied with the fit of your template, it’s time to remove the table gridlines.