multiple data set relating and clustering please help me

Hi every body

I want to read 3 dataset or csv files that one of thems is users data with user ID and ,,,,, and second is movie data such as movie ID and ,,,,,,,,, and the last is rating data with user ID and movie ID and ,,,,,,

finally after reading this 3 data i want to use kmeans clustering and cluster users bas on ratings for movie.can you help me?