What problem does LivingDNA: Download Match List as CSV solve?
LivingDNA gives you no way to export your DNA relatives, so the only way to work with your matches is to read them 50 at a time in the browser. LivingDNA: Download Match List as CSV adds a download button above the list that saves every match to a single spreadsheet, so you can sort, filter, and compare your results in whatever tool you already use.