This process is different depending on whether you are a foreign student:
Residing in a country that has signed the “CEF” (“Centre pour Etudes en France” Centre for Studies in France) convention: application to be completed directly on the Campus France website ((check the deadline on the following website).
http://www.campusfrance.org/en
From a country in the EU or from a country that is not covered by the “CEF” procedure, with a foreign qualification: application to be completed on the eCandidat website.
https://ecandidat-licence-master.u-bordeaux.fr