Menus have been around since the first Windows-like operating systems saw the light of dawn. Note that the menus in List Fields are context sensitive, meaning that they will react to the place you put your cursor. If you can't export data, the File->Export menus will be disabled, or grayed out.
One cool thing about the menu in List Fields is that the menu can be moved around! Do you like the menu to floating off List Fields-screen ? Grab the little handle at the left hand side of the menu and drag it off the List Fields-screen. The menu is now floating, and it will look like this:
The menu can also be attached - or docked - to any of the borders of List Fields. When the application starts, it just happen to be docked at the top-most border.