Data Utility: com.ptc.windchill.enterprise.part.reports.dataUtilities.PartReportTableTreeDataUtility
Gui Type: com.ptc.core.components.rendering.guicomponents.AttributeDisplayCompositeComponent
Column ID: refDesignators
Row Object: com.ptc.windchill.enterprise.part.reports.ReportInfo
Reference Designator validated by: com.ptc.core.ui.validation.DefaultUIComponentValidator
From: codebase/com/ptc/core/components/components.dataUtilities.properties
wt.services/svc/default/com.ptc.core.components.descriptor.DataUtility/part.report.multiLevelBOM/java.lang.Object/0=com.ptc.windchill.enterprise.part.reports.dataUtilities.PartReportTableTreeDataUtility/duplicate
wt.services/svc/default/com.ptc.core.components.descriptor.DataUtility/part.report.multiLevelBOMWithReplacements/java.lang.Object/0=com.ptc.windchill.enterprise.part.reports.dataUtilities.PartReportTableTreeDataUtility/duplicate
wt.services/svc/default/com.ptc.core.components.descriptor.DataUtility/part.report.multiLevelComponentsList/java.lang.Object/0=com.ptc.windchill.enterprise.part.reports.dataUtilities.PartReportTableTreeDataUtility/duplicate
wt.services/svc/default/com.ptc.core.components.descriptor.DataUtility/part.report.name/java.lang.Object/0=com.ptc.windchill.enterprise.part.reports.dataUtilities.PartReportNameDataUtility/singleton
wt.services/svc/default/com.ptc.core.components.descriptor.DataUtility/part.report.number.tree/java.lang.Object/0=com.ptc.windchill.enterprise.part.reports.dataUtilities.PartReportTreeNumberDataUtility/singleton
wt.services/svc/default/com.ptc.core.components.descriptor.DataUtility/part.report.number/java.lang.Object/0=com.ptc.windchill.enterprise.part.reports.dataUtilities.PartReportNumberDataUtility/singleton
wt.services/svc/default/com.ptc.core.components.descriptor.DataUtility/part.report.numberText/java.lang.Object/0=com.ptc.windchill.enterprise.part.reports.dataUtilities.PartReportNumberTextDataUtility/duplicate
wt.services/svc/default/com.ptc.core.components.descriptor.DataUtility/part.report.quantity/java.lang.Object/0=com.ptc.windchill.enterprise.part.reports.dataUtilities.PartReportQuantityDataUtility/duplicate
wt.services/svc/default/com.ptc.core.components.descriptor.DataUtility/part.report.singleLevelBOM/java.lang.Object/0=com.ptc.windchill.enterprise.part.reports.dataUtilities.PartReportTableTreeDataUtility/duplicate
wt.services/svc/default/com.ptc.core.components.descriptor.DataUtility/part.report.singleLevelBOMWithNotes.BOMTable/java.lang.Object/0=com.ptc.windchill.enterprise.part.reports.dataUtilities.PartReportTableTreeDataUtility/duplicate
wt.services/svc/default/com.ptc.core.components.descriptor.DataUtility/part.report.singleLevelConsolidatedBOM/java.lang.Object/0=com.ptc.windchill.enterprise.part.reports.dataUtilities.PartReportTableTreeDataUtility/duplicate
Looks like you will have to extend this data Utility or wrap around it and replace the call out with yours in the report you want to export. Make sure you wrap strings!