Which data file to download from purchased databases of ecoinvent

Question

I have purchased databases from ecoinvent. But there is a list of which one I would have to download...and every dataset also has subcategories..

Answer 1

(well, for openLCA, you should use the ecoinvent version from Nexus, as written in quite some posts here)

Comments

Andreas Ciroth...From literature, I came to know that for processes like LCA of Photovoltaic production, Recycling processes etc cut off LCI modelling approach is suggested.
 Should I download all modelling approaches or just cut off ?? and cut off unit or cut off system would be required for PV production, recycling LCA processes.