Shows or hides the menus and toolbars in Writer or Calc. To exit the full-screen mode, click the Full Screen button or press the Esc key.
Choose View - Full Screen.
Shift+
Ctrl
+J
Full Screen (in Print Preview)
In Writer and Calc, you can also use the shortcut keys Ctrl+Shift+J to switch between the normal and full-screen mode.
You can still use shortcut keys in Full Screen mode, even though the menus are unavailable. To open the View menu, press Alt+V.