Appimage: cannot run binary file

[Christophe Pisteur]

Hello,

I would like to use the development version of freecad (currently
freecad 0.19), but only stable freecad (freecad 0.18) is in the guix
package.

The alternative solution is to use the freecad Appimage (1) as explain
here (2) but it doesn't work on my guix system. 
Here are the error messages I get when I launch the freecad Appimage
from terminal:

$ . /home/christophe/Téléchargements/FreeCAD_0.19-23578-Linux-
Conda_glibc2.12-x86_64.AppImage
bash: .: /home/christophe/Téléchargements/FreeCAD_0.19-23578-Linux-
Conda_glibc2.12-x86_64.AppImage : ne peut exécuter le fichier binaire

(= cannot run binary file).

Any idea? 

Christophe 

(1) https://github.com/FreeCAD/FreeCAD/releases/tag/0.19_pre
(2) https://wiki.freecadweb.org/AppImage