If you can get your hands on Adobe Fireworks, it can be used to convert Illustrator graphics to FT11 templates from Adobe Freehand. But both Freehand and Fireworks are discontinued programs.
Convert Adobe Illustrator graphics file to Adobe FreeHand 11 template file.
We found one software available in the database for this conversion.
Microsoft Windows software - convert ai to ft11 on Windows
Image editor used for web design from Adobe
Convert from ai file format
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.