org.apache.poi.ss.formula.eval.NotImplementedException: Error evaluating cell C00!L5 at org.apache.poi.ss.formula.WorkbookEvaluator.addExceptionInfo(WorkbookEvaluator.java:386) at org.apache.poi.ss.formula.WorkbookEvaluator.evaluateAny(WorkbookEvaluator.java:327) at org.apache.poi.ss.formula.WorkbookEvaluator.evaluate(WorkbookEvaluator.java:259) at org.apache.poi.xssf.usermodel.BaseXSSFFormulaEvaluator.evaluateFormulaCellValue(BaseXSSFFormulaEvaluator.java:65) at org.apache.poi.ss.formula.BaseFormulaEvaluator.evaluateFormulaCellEnum(BaseFormulaEvaluator.java:193) at org.apache.poi.ss.formula.BaseFormulaEvaluator.evaluateAllFormulaCells(BaseFormulaEvaluator.java:268) at org.apache.poi.ss.formula.BaseFormulaEvaluator.evaluateAllFormulaCells(BaseFormulaEvaluator.java:259) at org.apache.poi.xssf.usermodel.XSSFFormulaEvaluator.evaluateAllFormulaCells(XSSFFormulaEvaluator.java:72) at TestExcel.changeParams(TestExcel.java:51) at TestExcel.main(TestExcel.java:19) Caused by: org.apache.poi.ss.formula.eval.NotImplementedFunctionException: XIRR at org.apache.poi.ss.formula.atp.AnalysisToolPak$NotImplemented.evaluate(AnalysisToolPak.java:59) at org.apache.poi.ss.formula.UserDefinedFunction.evaluate(UserDefinedFunction.java:61) at org.apache.poi.ss.formula.OperationEvaluatorFactory.evaluate(OperationEvaluatorFactory.java:129) at org.apache.poi.ss.formula.WorkbookEvaluator.evaluateFormula(WorkbookEvaluator.java:550) at org.apache.poi.ss.formula.WorkbookEvaluator.evaluateAny(WorkbookEvaluator.java:317) ... 8 more