try gzip

Gzip will extract a ZIP file to the current directory:

gzip -d [filename]

If it's a .tar.gz file, use the tar program:

tar xzf [filename]

to join both the GZip part and Tar part together.

My favorite:

 unzip filename.zip

Command line programs like p7zip are not packaged with a program name.desktop file so there is no menu entry.
tux@xubuntu:~$ tazpkg list-files p7zip

Installed files with : p7zip
================================================================================
/usr/bin/7zr
================================================================================
1 files installed with p7zip.

7zr is the executable for p7zip

I tried to list and extract a few zip files with 7zr and got this error:
Error: Can not open file as archive
Error: ma401_RedHat73_drivers.zip is not supported archive

I google 7zr man page for explanation:
http://www.digipedia.pl/man/doc/view/7zr.1/
7zr is a “light-version” of 7za that only handles 7z archives.

p7zip-full extracts zips

7z x filename.zip

Hope this is not too geeky for you ;P

Maybe, your zip-file is broken? Rename it (to delete file extension) like this:
my_file.zip -> my_file
Right-click on file, properties... What system writes, is it zip?

awesome thanks guys