I've just started exploring the XML data dumps available in /public/dumps/public/. It is difficult to understand what's available because the documentation is incomplete.
I'm looking specifically at https://meta.wikimedia.org/wiki/Data_dumps/What%27s_available_for_download#XML files. It gives a general description of what's available, but unlike the Database tables section above it, gives no concrete mapping to file names.
Could somebody who is familiar with the dump process please go through and provide more detailed documentation of what file name patterns correspond to which XML data sets? I started recording some of my own observations at https://meta.wikimedia.org/wiki/Talk:Data_dumps/Dump_format, but that's both laborious and error-prone; I might simply be memorializing my misunderstanding of how things actually are.