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> import java.time.DateTimeException;
> 
> import org.apache.poi.ss.formula.eval.ErrorEval;
> 
59c63,67
<             return new NumberEval(DateUtil.getExcelDate(DateParser.parseLocalDate(dateText)));
---
> 	    try {
>                 return new NumberEval(DateUtil.getExcelDate(DateParser.parseLocalDate(dateText)));
>             } catch (DateTimeException e) {
>         	throw new EvaluationException(ErrorEval.NUM_ERROR);
>             }