diff --git a/module2/exo4/DonneesExo.csv b/module2/exo4/DonneesExo.csv
index 1cb9050386e7b4a2a09077db588a036dfe7f35c3..e292982222a0b79e5a2b5a80fdf94a8efbc81bef 100644
--- a/module2/exo4/DonneesExo.csv
+++ b/module2/exo4/DonneesExo.csv
@@ -1,5 +1,5 @@
-Formulation,Référence,70%C,50%C,30%C
-Rc24h,24.7,19.8,14.5,9.9
-Rc7j,60.2,55.7,39.4,28.6
-Rc28j,81.6,75.6,55.8,42.7
-Rc90j,87.5,79.8,61.2,49.8
+"Formulation","Référence","70%C","50%C","30%C"
+"Rc24h",24.7,19.8,14.5,9.9
+"Rc7j",60.2,55.7,39.4,28.6
+"Rc28j",81.6,75.6,55.8,42.7
+"Rc90j",87.5,79.8,61.2,49.8