There should be a menu bar at the bottom of your screen.在屏幕的下方应该有一个菜单栏。Move the mouse pointer to the menu bar.将鼠标光标移到菜单栏。Click "File" in the menu bar, then click "Exit".点击菜单栏中的“文件”，再点击“退出”。There's a quick-access menu bar below the top menu.在顶部菜单下面有一个可快速进入的菜单栏。