do you mean blocks of indecipherable text that begin with a line like - ‘begin max patcher’
If so then select and copy the entire text, then in max choose ‘new from clipboard’ in the File menu.
( more recent files might be readable text, but the process is the same )
Some of the things on github are saved as with the extension .maxpat
for those you can just right click and ‘save link as’, download it and open in max.
hope this helps
what is the monome app you’re interested in?