how to open installed software

[suryak]

Actually I installed 7Zip using ubuntu software center but couldn't open it.
Neither I couldn't find any icon of it or I couldn't open using Archive manager ..
what I should do. .

[dino99]

http://www.liberiangeek.net/2010/05/how-to-manage-file-association-in-ubuntu-with-ubuntu-tweak/