(3/n)
...https://drive.google.com/file/d/1lipuAfIC9Q22VClDbTgI_7KZ_aajVZDm/view?usp=sharing
2) On Mastodon, go to Preferences > Import and Export > EXPORT.
There, save all your current list and request an archive of your content(!).
(This is important, if you ever need to restore the current state.)
3) On Mastodon, go to Preferences > Import and Export > Import.
4). For input type select "Domain blocking list".
(Make sure you have that selected and do not overwrite...