IGES

IGES (Initial Graphics Exchange Specification) is a text-based CAD format. The U.S. military was involved in its development. Though antiquated, it apparently still has some uses, due to its portability.

It is not related to the Institute of Global Environment and Society, or to the International Genetic Epidemiology Society.

Specifications

 * IGES Version 6.0 (draft, apparently abandoned)
 * http://standards.sae.org/j1881_199302/ (not free to download)

Sample files

 * http://www.kurtworkholding.com/downloads/igs/
 * http://www.wiz-worx.com/iges5x/wysiwyg/igs/

Links

 * Wikipedia article
 * , from the Encyclopedia of Graphics File Formats