Adapted from the plugin for Arkadia
Original source code available here: https://github.com/Delwing/mudlet-map-reader
I've honestly just translated it from Polish to English and removed the Arkadian branding to make it more Mudlet generic. The original work is excellent and I will be monitoring upstream to pull in additional enhancements as they come.
Screenshot is from Asteria
Download the latest mpackage release from https://github.com/demonnic/mudlet-map-reader/releases/latest
If you've installed a previous version, uninstall it from the Package Manager, then install the new version either by using the Package Manager or dragging the file and dropping it onto Mudlet's main screen.
Just run the alias
/explore-map
It will then set about exporting the map data and opening your web browser to the index page.