procedure TForm1.Button1Click(Sender: TObject);
var
  FileHandle: THandle;
  LocalFileTime: TFileTime;
  DosFileTime: DWORD;
  LastAccessedTime: TDateTime;
  FindData: TWin32FindData;
begin
  FileHandle := FindFirstFile('AnyFile.FIL', FindData);
  if FileHandle <> INVALID_HANDLE_VALUE then
  begin
    Windows.FindClose(Handle);
    if (FindData.dwFileAttributes and FILE_ATTRIBUTE_DIRECTORY) = 0 then
    begin
      FileTimeToLocalFileTime(FindData.ftLastWriteTime, LocalFileTime);
      FileTimeToDosDateTime(LocalFileTime,
        LongRec(DosFileTime).Hi, LongRec(DosFileTime).Lo);
      LastAccessedTime := FileDateToDateTime(DosFileTime);
      Label1.Caption := DateTimeToStr(LastAccessedTime);
    end;
  end;
end;