Hi,
Welcome to the world of Opensource FEA. Hope you will enjoy the interaction here..
The archive you have downloaded is meant for Linux systems only. For Windows please visit
https-aster-windows.com/
(Please modify the above as I can't post page link here)
Also there are docker images available for using in Windows/Linux system. Visit
https.code-aster.org/forum2/viewtopic.php?id=23453 for the same.
Else, you can also install a virtual machine in Windows and try Salome-Meca there. But, I think, physical install is always more efficient in terms of speed.
Best regards
Sukumar