[sweeticemountain]

I'm having trouble getting kobo-desktop.deb to work on ubuntu.
When I go to kobo and download a book using .deb to open it I get the message
"Could not open the file /home/Documents/kobo-desktop.deb."
and " gedit has not been able to detect the character encoding.
Please check that you are not trying to open a binary file.
Select a character encoding from the menu and try again."

I am computer illiterate, so if anyone can walk me through fixing this, much appreciated. Synaptic says kobo-desktop is installed, but I've only just discovered synaptic and terminal exist so...