Thanks, but I didn’t have issues with downloading it and open it as text file, I’m actually trying to render it with lyx. I’ll keep looking on the web though since some must have had the same issue.
I will try, although the files have this comment at the beginning so I assumed it should be ok with v2.1.2: “#LyX 2.1 created this file. For more info see http://www.lyx.org/”