You can start a new drawing several ways. You can use a wizard to step you through the process, you can start from scratch using default settings, or you can start from a template file with a preset environment. In each case, you can choose the conventions and defaults you want to use for your drawing.
After working on your drawing, you also have several options for saving your work.
Specifying Units, Angles, and Drawing Scale
Starting with a Wizard
Starting with a Template File
Starting from Scratch
Opening an Existing Drawing
Saving a Drawing
See Also
Managing Files and Formats
Starting AutoCAD LT Using Command Line Switches