Export .ai file - open in Inkscape

 From:  Brian (BWTR)
1889.2 In reply to 1889.1 
It's all probably related to .AI file versions.

Many apps wont accept .ai files older than version 8 or earlier.
You may need to have a copy of Illustrator to enable resaving the file in a version compatable with a particular app.

A VERY crazy world.