if (fileAlreadyExists)
        {
            if (!fileCreationInfo.Overwrite)
            {
                // The existing file will be archived before being replaced by the new one
                var destinationFileName = string.Format(
                    "{0} ({1}){2}",
                    Path.GetFileNameWithoutExtension(ensuredFile.Name),
                    DateTime.UtcNow.ToString("yyyy-MM-dd hh-mm-ss"),
                    Path.GetExtension(ensuredFile.Name));

                var destinationurl = string.Format("{0}/{1}", parentFolder.ServerRelativeUrl, destinationFileName);
                ensuredFile.MoveTo(destinationurl, MoveOperations.None);
                clientContext.ExecuteQuery();
            }
        }