This is a simple background program that stays in tray and watches for changes of CensusPlusWotlk.lua from the CensusPlusWotlk WoW Classic interface addon. When it detects a change, it automatically uploads the file to wowclassicpop.com where it gets processed and aggregated into a database.
Click the Releases button in the header above or go to https://github.com/scarecr0w12/WowCensusUploader/releases directly