Please follow the next steps:
XML
1. On The XML Import use the following settings (see screenshot 1)
2. See your XmlData.rsd file. Location path (see screenshot 2)
3. Open it in Notepad and change integer to string (see screenshot 3)
4. Delete this string (see screenshot 4)
5. Save.
6. Go back to DME.
7. Import XML file again using the settings from screenshot1.