ah okey i'm sorry i forgot that so my version of talend is 5.2.2 and my version of mysql workbench is 5.2 also and when i tried to import my excel file (.csv) i followed the instruction of this video
http://www.youtube.com/watch?v=GBC5NETEvPo then when i wanted to execute in the last it made me this error with red color as a conclusion we don't have any new rows in my mysql database
Démarrage du job test22 a 08:50 09/04/2013.
connecting to socket on port 3518
connected
=====>Duplicate entry '' for key 1<======
disconnected
Job test22 terminé à 08:50 09/04/2013.