Error executing background Job 'Loading Excel File': java.lang.ArrayIndexOutOfBoundsException: 1

I am trying to load an Excel file fo rmy fianl project. I was able to load the Excel files 3/20/2017 just fine. Starting yesterday morning I began getting this error. I have tried using hte import wizard and the read.excel but, I still get this error. 

• Exception: java.lang.ArrayIndexOutOfBoundsException
• Message: 1
• Stack trace:
• com.rapidminer.operator.nio.model.xlsx.XlsxNumberFormats.setCellNumberFormatId(XlsxNumberFormats.java:65)
• com.rapidminer.operator.nio.model.xlsx.XlsxNumberFormatParser.parseNumberFormats(XlsxNumberFormatParser.java:144)
• com.rapidminer.operator.nio.model.xlsx.XlsxResultSet.(XlsxResultSet.java:216)
• com.rapidminer.operator.nio.model.xlsx.XlsxResultSet.(XlsxResultSet.java:286)
• com.rapidminer.operator.nio.model.xlsx.XlsxSheetTableModel.(XlsxSheetTableModel.java:94)
• com.rapidminer.operator.nio.model.ExcelResultSetConfiguration.createExcelTableModel(ExcelResultSetConfiguration.java:175)
• com.rapidminer.studio.io.data.internal.file.excel.ExcelSheetSelectionPanelModel$1.loadTableModel(ExcelSheetSelectionPanelModel.java:209)
• com.rapidminer.studio.io.data.internal.file.excel.ExcelSheetSelectionPanelModel$1.run(ExcelSheetSelectionPanelModel.java:173)
• com.rapidminer.gui.tools.ProgressThread$3.run(ProgressThread.java:550)
• java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
• java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
• java.lang.Thread.run(Thread.java:745)