i download a RAR file but there loads of different part can u tell me how i put it all in one and how to put RAR to a normaly file
If the appropriate software is installed, you should be able to right click on the file and a context menu should open. If not, you can install the likes of 7-Zip. http://www.7-zip.org/download.html
At least do a cursory search before posting such redundant questions. The following link was in the stickies at the top of the page, http://forums.afterdawn.com/thread_view.cfm/248020