Here’s the error that usually shown in output xml file:
<status element="unknown" result="failed">
<message id="EJPXA0049E">com.ibm.wps.command.xml.XmlFormatException: EJPXA0049E: Input syntax error in line 1 column 1: the XML input does not conform to the XML schema.</message>
<message>org.xml.sax.SAXParseException: Content is not allowed in prolog.</message>
It’s usually because of some garbage characters added in the xml which was first exported by xmlaccess command.
If the garbage characters are not visible in the initial input file, then do the following:
1. Copy the contents starting at line 2 to last line from the input file
2. Paste the contents in the notepad and save it as xml file
3. Retry the XmlAccess import using the new xml file.