Well, I am not fully versed with SR in DICOM. From the file provided, I am not I can find any XML data values. The data values seem to be regular DICOM tags and value.
If you run this command you will see it yourself: "./nanodcm dump --mask=report02.dcm --recursive=false" It assumes that the file you gave me is in the same location of the root of the Nanodicom package. I am not sure if that works in Windows.
If you need the data in XML, you might want to extract that from DICOM using dcmctk [1]
If you need to traverse the data from the DICOM file using Nanodicom, you might need to do some processing like the script [2]. You can take a look at some of the other scripts in here [3] for further information.
Thanks,
Nano.