Hi @WJ ZH,
You can navigate to this location: Edge Settings>Default browser>Allow sites to be reloaded in Internet Explorer mode (IE mode) and set this option to "Allow". Then, you can click the three dots in the upper right corner of Edge, and you will see "Reload in Internet Explorer mode". You can try to open the xml file in this mode to see if it can be opened normally.
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Best regards,
Jinxin Wang