There are a few ways to get full control over a file:
1. Use a text editor like Notepad++ or Sublime Text.
2. Use an FTP client like FileZilla or Cyberduck.
3. Use a file manager like Total Commander or Directory Opus.
4. Use a command line tool like 7-Zip or WinRAR.
5. Use a file recovery tool like Recuva or DiskDigger.