Import/Export via iTunes file sharing.

Import from RunKeeper.
You can export GPX data at the bottom of Runkeeper website.

GPX data is a kind of XML as shown below.

You can download sample GPX data file with motion status
Import/Export via iTunes file sharing.

Import from RunKeeper.
You can export GPX data at the bottom of Runkeeper website.

GPX data is a kind of XML as shown below.

You can download sample GPX data file with motion status