// Move file to another Google Drive Folder

function moveFileToAnotherFolder(fileID, targetFolderID) {
  var file = DriveApp.getFileById(fileID);

  // Remove the file from all parent folders
  var parents = file.getParents();
  while (parents.hasNext()) {
    var parent = parents.next();
    parent.removeFile(file);
  }

  DriveApp.getFolderById(targetFolderID).addFile(file);
}