^X character aborting backup/mail

The following exception occurs during automated backup, leaving an aborted file. No mail is being delivered – assume this is the result of same.

How do we go about finding and cleaning the abberant data?

thanks.

2004-06-02 01:23:58,994 ERROR [jira.action.admin.DataExport] Error exporting: java.io.IOException: The character '^X' is an invalid XML chara\
cter
java.io.IOException: The character '^X' is an invalid XML character
at org.apache.xml.serialize.BaseMarkupSerializer.fatalError(Unknown Source)
at org.apache.xml.serialize.BaseMarkupSerializer.surrogates(Unknown Source)
at org.apache.xml.serialize.BaseMarkupSerializer.printCDATAText(Unknown Source)
at org.apache.xml.serialize.BaseMarkupSerializer.characters(Unknown Source)
at org.apache.xml.serialize.BaseMarkupSerializer.serializeNode(Unknown Source)
at org.apache.xml.serialize.XMLSerializer.serializeElement(Unknown Source)
at org.apache.xml.serialize.BaseMarkupSerializer.serializeNode(Unknown Source)
at org.apache.xml.serialize.XMLSerializer.serializeElement(Unknown Source)
at org.apache.xml.serialize.BaseMarkupSerializer.serializeNode(Unknown Source)
at org.apache.xml.serialize.XMLSerializer.serializeElement(Unknown Source)
at org.apache.xml.serialize.BaseMarkupSerializer.serializeNode(Unknown Source)
at org.apache.xml.serialize.BaseMarkupSerializer.serialize(Unknown Source)
at com.atlassian.jira.action.admin.DataExport.writeXmlDocument(DataExport.java:141)
at com.atlassian.jira.action.admin.DataExport.writeFile(DataExport.java:104)
at com.atlassian.jira.action.admin.DataExport.execute(DataExport.java:74)
at webwork.dispatcher.GenericDispatcher.executeAction(GenericDispatcher.java:131)
at com.atlassian.core.action.DefaultActionDispatcher.execute(DefaultActionDispatcher.java:34)
at com.atlassian.jira.service.services.export.ExportService.run(ExportService.java:91)
at com.atlassian.jira.service.JiraServiceContainer.run(JiraServiceContainer.java:54)
at com.atlassian.jira.service.ServiceRunner.execute(ServiceRunner.java:53)
at org.quartz.core.JobRunShell.run(JobRunShell.java:147)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:387)
2004-06-02 01:23:58,999 WARN [service.services.export.ExportService] Exception running export service Error in action: com.atlassian.jira.act\
ion.admin.DataExport@16c7c2, result: error
invalid_xml_character
com.atlassian.core.AtlassianCoreException: Error in action: com.atlassian.jira.action.admin.DataExport@16c7c2, result: error
invalid_xml_character
at com.atlassian.core.action.ActionUtils.checkForErrors(ActionUtils.java:53)
at com.atlassian.jira.service.services.export.ExportService.run(ExportService.java:92)
at com.atlassian.jira.service.JiraServiceContainer.run(JiraServiceContainer.java:54)
at com.atlassian.jira.service.ServiceRunner.execute(ServiceRunner.java:53)
at org.quartz.core.JobRunShell.run(JobRunShell.java:147)
at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:387)