Finally I got the solution by digging drupal cores, We can get the real_path or absolute_path by using Drupal file_system Service

\Drupal::service('file_system')->realpath('public://2016-03/Places_2.xlsx')

Finally I got the solution by digging Drupal code.
We can get the real path or absolute path by using the file_system service.

$absolute_path = \Drupal::service('file_system')->realpath('public://2016-03/Places_2.xlsx');