This is a gateway.xml file containing links to example offer in the IOF 2.2 format. That offer is defined in the same file package as in "XML" folder which is a part of the IOF 2.2 Technical Specification.

To import an example offer using the IAI Downloader application, you need to configure access data in "USTAWIENIA" tab. After this step, click on "Dodaj dostawcę" button. Choose option "Z dysku" in "URL z plikiem dostawcy" tab. Click on input field and select the gateway.xml file. Click "Sprawdź" and next "Dodaj". 

Now, you can configure import options.

Good luck!

IAI-Shop.com Technical Support