02/16/2011 -Press the escape key (esc on some machines) to make sure you are in command mode (also called edit mode). In command mode type "ZZ" or ":wq". If you want to exit without saving changes, use ":q!".
02/16/2011 -LibreOffice is installed on the linux machines and it capable of viewing Microsoft documents. Just run /usr/bin/libreoffice or select it from the applications menu in your windows manager.