ASCII character 9: Control-I is the character for a horizontal tab.ASCII character 11: Control-K is the character for a vertical tab.The tab character moves the cursor, and any text in front of it, to the next tab stop.It is normally invisible, but certain keyboard command such a Show Invisibles or command-J will make the hard return, space, and tabs visible on the screen (though they still will not show up in print).In this case, the tab look like right-facing arrows.