Well I'm not sure what and why do you want to import in file explorer.
My app intercepts any NEW sms vcards sent from Nokia by sms to your Android device when installed.
You mean those two previously received vcards? No it is not possible to import them. Anyway thanks for a tip, I will try to import vcards from sms inbox too, because now I'm importing them from MMS box only.
But let me know if I'm wrong about your question.