"Je le veux en français" is the translation of "أريده بالفرنسية" in French. It means "I want it in French".
Here are some other ways to say "I want it in French" in French:
Je voudrais l'avoir en français. (I would like to have it in French.)
Pourriez-vous me le donner en français, s'il vous plaît ? (Could you give it to me in French, please?)
J'en ai besoin en français. (I need it in French.)
I hope this helps! Let me know if you have any other questions.