https://forums.tomshardware.com/faq/how-to-fix-windows-10-error-%E2%80%98external-exception-e06d7363%E2%80%99.2752246/

Possibly XMLTOCURSOR is no good idea working with external object.
Will it work if you try

...
lcXML = resultDoc.xml
IF XMLToCursor(m.lcXML, 'result', 8192 )=0
...

?
Update:
Try different name for cursor too, one never know.

Lutz
>Big xml file needs converted to VFP cursor
>
>tried
>
>

>source = CreateObject('MSXML.Domdocument')
>stylesheet = CreateObject('MSXML.Domdocument')
>resultDoc = CreateObject('MSXML.Domdocument')
>resultDoc.validateOnParse = .t.
>stylesheet.load(StiiliLeht)
>source.load( 'bigxml.xml' )
>source.transformNodeToObject(stylesheet, @resultDoc)
>
>* Exception code=E06D7363
>IF XMLToCursor(resultDoc.xml, 'result', 8192 )=0
>

>
>But fatal exception Exception code=E06D7363 occurs in line
>
>IF XMLToCursor(resultDoc.xml, 'result', 8192 )=0
>
>and application terminates.
>How to convert big xml file to cursor ?
>
>Posted also in
>
>https://stackoverflow.com/questions/66000261/reading-big-xml-file