# 1.7 Quick Tour

When XTrackCAD starts, it displays the Main (Section 3.1) and Map (Section 3.2.2) windows. The Map window is used to change the origin of the Main window when the entire layout cannot be displayed at one time.

The Menu bar across the top of the Main window contains standard Windows menus. Some of these are particularly useful to the new user:

- The File>Exit menu exits XTrackCAD. You can also exit by selecting the System menu in the upper left corner of the Window.

- The File>Open menu opens existing layout files. When first installed, the default directory contains some example programs you can look at.

- The Help menu can be used to read the XTrackCAD Help file. Also, the Help>Demos menu selects a number of demonstrations which illustrate various features of XTrackCAD.

- The Options>Layout menu specifies the working scale and overall room size.

- The Options>Preferences menu specifies some less frequently changed items. You can use this menu to choose Metric units (Section 2.10.7).