I have recently installed a game and in the game's folder, there's a file with the extension of x86_64. I attempted to open said file and recieved this error:

Could not display KSP.x86_64
There is no application installed for executable files. Do you want to search for an application to open this file?

After that I tried to right click the file and select 'open with other application' and this error message up.

No applications available to open KSP.x86_64.
Click Show other application for more options, or find applications online to install new applications.

I clicked 'find applications online' and after a few seconds the following error message showed up.

GDBus.Error:org.freedesktop.DBus.Python.xdg.Exceptions.ParsingError: Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/defer/__init__.py", line 489, in _inline_callbacks
    result = gen.send(result)
  File "/usr/lib/python2.7/dist-packages/sessioninstaller/core.py", line 1030, in _install_mime_types
  File "/usr/lib/python2.7/dist-packages/xdg/DesktopEntry.py", line 33, in __init__
  File "/usr/lib/python2.7/dist-packages/xdg/DesktopEntry.py", line 42, in parse
    IniFile.parse(self, file, ["Desktop Entry", "KDE Desktop Entry"])
  File "/usr/lib/python2.7/dist-packages/xdg/IniFile.py", line 81, in parse
    raise ParsingError("Invalid line: " + line, filename)
ParsingError: ParsingError in file '/usr/share/app-install/desktop/workrave:workrave.desktop', Invalid line: - RSI (Repetitive Strain Injury) oraz wspomaga rekonwalescencj\u0119

How can I open .x86_64 in Ubuntu 13.04?


You need to mark the file as executable then you can double click it and choose "Run in terminal".

How to mark a file as executable

  1. Right click the file
  2. Choose 'Properties'
  3. Go to the 'Permissions' tab
  4. Tick 'Allow executing this file as a program'
  5. Close the dialog.

You can either right click on the file, click permissions, and check "Allow executing file as a program", or you can open a terminal and type ./KSP.x86_64 (Note the ./ in front of it.).


To do it from the command-line:

Give Execute Permission to file:

chmod +x /path/to/the/file.x86

Go to Files Directory:

cd /path/to/the

Run The File:


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