I have Adobe Premiere CS6 installed in my PC but my college Adobe version is cs5.5..so how can i save CS6 files into CS5.5?? i have checked a few forums but couldnt find a solution!!
Premiere Pro projects are generally forward compatible, not backwards.
See e.g. this thread.
http://translate.google.ru/translate?sl=ru&tl=en&js=n&prev=_t&hl=ru&ie =UTF-8&eotf=1&u=http%3A%2F%2Fwww.efxi.ru%2Fmore%2Fpremiere_pro_cs6_ope n_project.html