Update cheet-js (js-xlsx) to last version

[lbAntoine]

I've encountered problems when using the package while running an updated version of js-xlsx for file export purposes. I opted to fork the project and just made a minor change to the version of the package.

Before

// There is code before, I'll just use the try and catch to make it shorter
try {
  var workbook = XLS.read(data, { type: 'binary' });

  if (attrs.onread) {
    var handleRead = scope[attrs.onread];
    if (typeof handleRead === "function") {
      handleRead(workbook);
    }
  }
} catch (e) {
  if (attrs.onerror) {
    var handleError = scope[attrs.onerror];
    if (typeof handleError === "function") {
      handleError(e);
    }
  }
}

After

try {
  var workbook = XLSX.read(data, { type: 'binary' }); // The global changed to XLSX on newer versions

  if (attrs.onread) {
    var handleRead = scope[attrs.onread];
    if (typeof handleRead === "function") {
      handleRead(workbook);
    }
  }
} catch (e) {
  if (attrs.onerror) {
    var handleError = scope[attrs.onerror];
    if (typeof handleError === "function") {
      handleError(e);
    }
  }
}

This seemed to fix the problem I had and let me run both this package and the original js-xlsx package for other purposes. Hoping this could help someone else.