public XSSFWorkbook readWorkbook()
    {
        XSSFWorkbook wbDefault = new XSSFWorkbook();
        try
        {
            String pathname = "";

            // check what OS we are running on
            String os = System.getProperty("os.name").toLowerCase();

            if(os.contains("win")) pathname = "I:\\c3\\Projects\\Career-Center-Yelp-Project\\Design-Docs\\Riverside-Jobs-090514.xlsx";
            else if(os.contains("mac")) pathname = "/Volumes/d5/c3/Projects/Career-Center-Yelp-Project/Design-Docs/Riverside-Jobs-090514.xlsx";

            FileInputStream fileIn = new FileInputStream(pathname);
            try
            {
                XSSFWorkbook wb = new XSSFWorkbook(fileIn);
                return wb;
            }
            catch(IOException ioe)
            {
                System.out.println(ioe.getMessage());
                return wbDefault;
            }
        }
        catch(FileNotFoundException fnfe)
        {
            System.out.println(fnfe.getMessage());
            return wbDefault;
        }
    }