google script for google drive files

function onLoad() {
var ss=SpreadsheetApp.getActiveSpreadsheet();
var s=ss.getActiveSheet();
var c=s.getActiveCell();
var fldr=DriveApp.getFolderById("1111_your_googledrive_folder_id_11111");
var files=fldr.getFiles();
var data=[],f,str;
var ss = SpreadsheetApp.getActiveSheet();
ss.clear();
ss.appendRow(["Name", "Date", "Id","MimeType","Owner","Size","Url","Viewers"]);
while (files.hasNext()) {
f=files.next();
data = [
f.getName(),
f.getDateCreated(),
f.getId(),
f.getMimeType(),
f.getOwner(),
f.getSize(),
f.getUrl(),
f.getViewers()
];
ss.appendRow(data);
}
}