box = document.getElementById("drop_zone");
  const table = document.getElementById("table");

  inputElement.addEventListener("change", changeFiles, false);
  dropbox.addEventListener("dragenter", dragenter, false);
  dropbox.addEventListener("dragleave", dragleave, false);
  dropbox.addEventListener("dragover", dragover, false);
  dropbox.addEventListener("drop", drop, false);
  dropbox.addEventListener("click", clickdropbox, false);

  function changeFiles() {
    handleFiles(this.files)
  }
  function h