text: public ValueEval getArea3DEval(Area3DPxg aptg) {SheetRangeEvaluator sre = createExternSheetRefEvaluator(aptg.getSheetName(), aptg.getLastSheetName(), aptg.getExternalWorkbookNumber());return new LazyAreaEval(aptg.getFirstRow(), aptg.getFirstColumn(),aptg.getLastRow(), aptg.getLastColumn(), sre);}