Simple question: how do you unzip or extract .zip archives/files in Ubuntu 12.04 Unity?
In Unity, you can right click on the .zip file you want to open. Then select either:
A) "Open with Archive Manager" (the default action, and allows you to extract the files wherever you want them -- drag and drop), or
B) toward the bottom of the menu, select "Extract Here."
If you select Extract Here, the contents will appear in a new folder, but in the same folder where the .zip file is located.
Hope that helps.
First open terminal and install the unzip by using:
sudo apt-get install unzip
now navigate to the folder where the file is and open a terminal there by doing this in the terminal:
lsto make sure your in the right folder and if you are your will see the file listed
Then type the following in the terminal
man unzip for more information