Format:AI
From CoMakingSpace Wiki
AI is the native Adobe Illustrator file format. Adobe Illustrator has been around since 1988, and the file format has been updated many times over the years. When saving in the AI file format, Adobe Illustrator offers a selection of legacy AI file formats:
Illustrator 10
The Adobe Illustrator 10 file format is compatible with the LaserCut 5.3 software for our Laser Cutter.
Illustrator 8
The Adobe Illustrator 8 file format is compatible with some 3d software, such as Cinema 4d.