I believe the question was posed by 'gail' to change the format of AutoCAD drawings so people without the program can view them.
AutoDesk (creater of AutoCAD, 3DStudio Max, etc.) has a free .dwg viewer for AutoCAD drawings.
Volo View Express:
http://usa.autodesk.com/adsk/index/0...123112,00.html
24MB Download