Cellulist ethanol has been produce from enzymes for a few years now. There is a Canadian firm in the running. My understanding is the process is lengthy and you need to do things like recycle the enzemes. It may not work out commercially.
In addition fuel can be made from cellulose by burning it in the presence of water but with insufficient oxygen. It produces something called wood diesel, see Wikipedia. It's inefficiet, produces a litre of fuel from 10 pounds of cellulose - but it's low tech. This is how they produce diesel from coal as well, by incomplete compustion.
http://www.iogen.ca/
In addition fuel can be made from cellulose by burning it in the presence of water but with insufficient oxygen. It produces something called wood diesel, see Wikipedia. It's inefficiet, produces a litre of fuel from 10 pounds of cellulose - but it's low tech. This is how they produce diesel from coal as well, by incomplete compustion.