[Trisquel-users] Installing packages without internet connection

[trisquel]

I want to install packages on a computer without internet access. But I have  
a second computer with internet connection.
I downloaded them as .deb files and tried apt-get install /home/USER/file.deb  
but it didn't work. Installing via the graphical package manager doesn't work  
either.

Please help me if you know how to do it.