BI Publisher Excel template Preview Error

Can anyone please guide me about the problem and how to resolve it.I am unable to understand the error which is mentioned below:-

    java.lang.NumberFormatException: multiple points
at sun.misc.FloatingDecimal.readJavaFormatString(Unknown Source)
at java.lang.Double.valueOf(Unknown Source)
at oracle.xdo.template.excel.render.BookDataWriter.copyCell(BookDataWriter.java:766)
at oracle.xdo.template.excel.render.BookDataWriter.finishCell(BookDataWriter.java:699)
at oracle.xdo.template.excel.render.CellHandler.endElement(CellHandler.java:111)
at oracle.xdo.template.excel.render.BookDataParser.endElement(BookDataParser.java:203)
at oracle.xml.parser.v2.XMLContentHandler.endElement(XMLContentHandler.java:211)
at oracle.xml.parser.v2.NonValidatingParser.parseElement(NonValidatingParser.java:1554)
at oracle.xml.parser.v2.NonValidatingParser.parseRootElement(NonValidatingParser.java:409)
at oracle.xml.parser.v2.NonValidatingParser.parseDocument(NonValidatingParser.java:355)
at oracle.xml.parser.v2.XMLParser.parse(XMLParser.java:319)
at oracle.xdo.template.excel.render.BookDataParser.parserXMLDocument(BookDataParser.java:137)
at oracle.xdo.template.excel.ExcelController.processActionLanguage(ExcelController.java:366)
at oracle.xdo.template.excel.ExcelController.process(ExcelController.java:240)
at oracle.xdo.template.ExcelProcessor.process(ExcelProcessor.java:244)
at ExcelPreview.runXDO(ExcelPreview.java:110)
at ExcelPreview.main(ExcelPreview.java:87)