I'm using Illustrator CS6 (Mac) and I need to save some files to CS5.5, but this doesn't appear to be an option in the Save As dialog. When I choose Save As, I'm given Adobe Illustrator as an option (along with PDF, EPS, and a few others), but it isn't version-specific. This contrasts with, for example, Flash CS6, where my format options are clearly marked as CS6 or CS5.5. Am I missing something? Is there not a way to do this?
Thanks.
I think you are not proceeding further from the Save as Dialog box .
Here is the link that will help , the link states CS3 and CS2 but it is same for downsaving the file to old illustrator version
http://helpx.adobe.com/illustrator/kb/unable-export-file-previous-illu strator.html.
Blew that one all to hell. In AI you will need to use Save As and give the file a name and make sure that the file type is set to AI (dropdown list below the naming window. When you hit the save button a new dialog will come up with a dropdown list at the top where you can choose your version of AI.
North America
Europe, Middle East and Africa
Asia Pacific