Import certain type of file script

[Guest]

Hi everyone!

I'm trying to create a dialog for importing files to AE. I use importFileWithDialog() and it works fine except that it allows to import any type of file. I've tried to write an alert message that if the file type is wrong you need to try again but ExtendScript Toolkit doesn't even reach that part of script and shows the error. I believe that it should be possilbe to change the Files of Type selection although I can't find how. Any ideas?