SAP ABAP Error when reading XML files

How do you read XML files in SAP ECC 5.0? Function module "TEXT_CONVERT_XML_TO_SAP" does not work and gives us the error: "Unable to generate test frame."

When you get an error message it's always a good idea to double-click on it to see if there is any long text. In this instance, you'll see that it isn't possible to test this function module from SE37. You have to write your own test program