Welcome to /etc. This is a sort-of file storage space, where raw files are kept. Things like audio samples or ZIP's or whatever.
The /etc folder is designed to be browsable using a web browser, so that you can see its contents using a primitive web page I generated with a script I wrote (/etc/gen.py) to generate the directory listings as I see fit.
Feel free to browse as you wish.
Some folders have a 'readme.html' like this one, so read that for foler info.