You can control what to retrieve from an Adobe Illustrator file.
By setting File > Import > File Illustrator options, you can enable Alias to import the geometry as a Group of curves or as individual curves. You can also Scale the image before importing it into Alias.
When saving an Illustrator file choose File > Print Setup, set Output to File and set the Output Style to Illustrator. The output results transfer the paint and shapes information. The results of opening this file in Illustrator is a display of three objects: