It is not possible. You can however create a text file and a script that will generate text layers that can be run once you open AE
thank you for the reply mister Gerard ,
i read that we can export an xfl file from After Effects and edit in Flash professional
I guess that Adobe flash professionnal projects are Editable with XML no ?
That's outdated tech. XFL has been scrapped and just the same there has been no notable work on AE's XML project export. You need to use scripts like pt_OpenSesame to export the projects to an intermediary editable text file or create your own set of tools, including possibly expressions as well.