On a Wordpress site, I would like to make some files available for downloading, and some of these, I've just found out, cannot be added to the media library. Namely, it's not letting me upload a zipped folder, a Sketchup (.skp) file, and an HTML file.
If I want to make files available through a Wordpress site that Wordpress does not support, what are my options? Would it be possible to have a file stored elsewhere and still be downloadable through a link on the Wordpress site? I'm new to Wordpress, but (correct me if I'm wrong) Wordpress.com, where the site in question is hosted, does not seem to allow plugins.