Synology’s File Station, like many other Linux file extractors, does not auto-detect zip file’s charset.

Extracting files using default options by click Extract Here or Extract to may end up getting filenames in wrong charset.

To extract files in correct charset, you must:

  1. select Extract... in Extract action menu to open extract dialog.
  2. click Options tab in extract dialog.
  3. select the right language for the zip file in Codepage.