Just install the creative cloud connection using Adobe Application manager. You will get a folder of creative cloud after install Creative cloiud connection.
Simply copy the files into the creative cloud folder after signing in, it will automatically upload the copied files on the cloud space and it will show the green tick marck once the file get uploaded on the cloud space.
you can copy multiple files at a time in the creative cloud folder and upload them, Please make sure files size should be within 5GB.