org.zkoss.zss.model.InvalidFormulaException: string format is not correct
at org.zkoss.zss.model.impl.ConditionalFormattingRuleImpl.parseFormula(ConditionalFormattingRuleImpl.java:821)
at org.zkoss.zss.model.impl.ConditionalFormattingRuleImpl.setEscapedFormulas(ConditionalFormattingRuleImpl.java:843)
at org.zkoss.zss.model.impl.ConditionalFormattingRuleImpl.setFormula1(ConditionalFormattingRuleImpl.java:717)
at org.zkoss.zss.range.impl.imexp.ExcelXlsxImporter.prepareFormulas(ExcelXlsxImporter.java:989)
at org.zkoss.zss.range.impl.imexp.ExcelXlsxImporter.prepareConditonalFormattingRuleImpl(ExcelXlsxImporter.java:876)
at org.zkoss.zss.range.impl.imexp.ExcelXlsxImporter.prepareConditionalFormattingImpl(ExcelXlsxImporter.java:847)
at org.zkoss.zss.range.impl.imexp.ExcelXlsxImporter.importConditionalFormatting(ExcelXlsxImporter.java:829)
at org.zkoss.zss.range.impl.imexp.AbstractExcelImporter.importSheet(AbstractExcelImporter.java:397)
at org.zkoss.zss.range.impl.imexp.AbstractExcelImporter.imports(AbstractExcelImporter.java:154)
at org.zkoss.zss.range.impl.imexp.ExcelImportAdapter.imports(ExcelImportAdapter.java:46)
at org.zkoss.zss.range.impl.imexp.AbstractImporter.imports(AbstractImporter.java:54)
at org.zkoss.zss.ui.Spreadsheet.getSBook(Spreadsheet.java:653)