I suppose if I was to recommend some "safe long-term storage formats" I, too, would choose things that are readable in plain ASCII and/or have open source roots.
Shoutout to the Library of Congress for doing the real heavy lifting here?
Shoutout to the Library of Congress for doing the real heavy lifting here?
For single tables a database is probably overkill, but it's nice to have around when you need something reasonably powerful without being overly complex or hard to get started with.