All students who wish to study in France 90 days or more must follow the Campus France procedure before applying for a visa.
In a nutshell...
You Wish to Apply to a French Institution
Students who wish to apply to a full-time undergraduate or graduate program, in a French institution, must follow the online admission procedure.
And once your application is processed, you will receive a confirmation e-mail from Campus France USA. Please note, a printed version of this email will be requested at your visa appointment.
You can then proceed to the next step for your student visa application (France-Visas).