you mean I should download the mac version of the software on windows, or the openlca_lcia_methods_1_5_7_updatedCED.zolca file ?
I tried to do what the link you suggested tells me to do - stopping safari from unzipping file. It downloads the file as a .zolca file, but when I import the LCA Methods to the openLCA, the folders are empty.
The weird thing is that I did the exact same thing but with the LCIA_2_0_2.zolca file, and that worked just fine. It seems to be just with the LCA Methods that it is not working