Thanks for the quick reply!

Do you mean like using swiffy? https://www.google.com/doubleclick/studio/swiffy/

Hi!

We just bought Spine and we are very pleased with it

Our animators use Adobe Flash for animations, and now they have to learn Spine (not saying that it's difficult, but there's always an aversion to new things ).
I was wondering if they could just generate an SWF animation file or use de .FLA project file, and then import it on Spine in order to process the animation, adapt, or export to Unity.

Yup... somewhat like an SWF importer for Unity.

Regards,
Mixu