Your command prompt is focused on the directory containing the file MYAPP.TXT. You need to use a command line command to make MYAPP.TXT a hidden, read-only file. Type the command required to do this exactly as you would type it at the command line (before pressing Enter). Do not type the prompt. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). B I U Paragraph Arial 14px TX V V X X2 +] ABC V ~ X E. EX B ;)