AutoCAD 2007

To take full advantage of AutoCAD in your work environment, you need to be
aware of the DWG file format, the format in which AutoCAD saves drawings.
In some cases, an older version of AutoCAD can't open a DWG file that's
been saved by a newer version of AutoCAD.
A newer version of AutoCAD can always open files saved by an older
version.
Figure 1-1:
Cities,
houses, little
toy trains --
what do you
want to
draw today?
13
Chapter 1: Introducing AutoCAD and AutoCAD LT