To Save a Drawing to a Previous Release Format
Click
File
menu
Save As
.
In the Save Drawing As dialog box, in the File Name box, enter a new drawing name.
Under Files of type, select the AutoCAD or AutoCAD LT file format you want.
Click OK.
Related Concepts
About Saving Drawings to Previous Drawing File Formats
Related Tasks
To Save Drawings With Visual Fidelity for Annotative Objects
Related Reference
Commands for Using Drawings in Different Versions and Applications