extracting files.

i am new to the site and have a question. i downloaded a movie and when i try to extract it the message says that there are no files to extract. the file propertys show so many megabytes. am i doing something wrong.
Answer #1
You joined over a year ago and you’re new to the site?!
Anyway, make sure that all the parts of the movie are in the same folder. Then right click on the first of the parts and select Extract here (a Winrar option). Besides, when asking for help you should use Helpdesk
Answer #2
U can use either winrar or 7 zip, http://www.7-zip.org/
Just make sure to keep all files in 1 folder and right click>> extract here
edit: Damn already replied