title: BI Publisher and Excel template Preview Error
body: <p>I am using Excel (2013) and have the BI publisher add on.  I load the sample data, and to preview I am getting the below:
  Please advise, thanks James</p>
  
  <p>Start Excel Preview
  only open: false
  mTemplate: C:\Users\AJCENTROID\AppData\Local\Oracle\BIPublisher\TemplateBuilderforExcel\tmp\tmp\tmp.xls
  mTmpTemplate: C:\Users\AJCENTROID\AppData\Local\Oracle\BIPublisher\TemplateBuilderforExcel\tmp/tmp.xls
  java.lang.NullPointerException
      at java.io.FileInputStream.(Unknown Source)
      at oracle.xdo.template.excel.ExcelController.processActionLanguage(ExcelController.java:364)
      at oracle.xdo.template.excel.ExcelController.process(ExcelController.java:256)
      at oracle.xdo.template.ExcelProcessor.process(ExcelProcessor.java:244)
      at ExcelPreview.runXDO(ExcelPreview.java:110)
      at ExcelPreview.main(ExcelPreview.java:87)</p>