private def embedProgressSheet(slideShow: XMLSlideShow, slide: XSLFSlide, excelFile: File): Unit = {
    for (part <- slideShow.getAllEmbedds.find(_.getContentType == "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")) {
      if (excelFile.exists()) {
        val in = new FileInputStream(excelFile)
        val partOs = part.getOutputStream
        partOs.write(IOUtils.toByteArray(in))
        partOs.close()
        in.close()
      }
    }
  }