Creating Forms with Content XML Export

Hi,

I am looking for a plugin, which can export users’ content to an XML file and save it to a specific folder in my FTP. So in detail:

User writes his contact data and some other data in a (contact) form of the website.
Usually the contact form then sends an email to the administrator. But I would like to have no email (or email only as an extra) but an XML file, which contains the dataset of the (contact) form.

The reason is that I want to process this data automatically as soon as it was created.

Do know such a plugin?

Sincerely