Thread:Gu4n/@comment-2088849-20161212064558/@comment-27069677-20161212084345

You simply insert categories, like "Category:Gagharv_Locations", and clikc 'Add'. Then you click on 'Export' and you'll download a XML file containing all the data of pages within that category.

I'm sorry there is no easier way to do this, but at least your work won't be in vain.