[bosse]

My dad had a ton of 123 files on a secondary laptop with an ancient Windows version, just because these had important information that he still needed to look at from time to time. I was a bit worried about the resiliency of this setup, to put it mildly.

Recently I realized that LibreOffice could convert Lotus files to ODF/ODS files, even in the CLI, so I made a very simple bash script to convert them all, and bulk uploaded them on my Nextcloud with Collabora, and gave my dad a login and a crash course. So now he can look up his files online, and they get properly backed up as part of my normal routine on the server.

Big tip of the hat to data archeologists like OP and the LibreOffice contributors.

[Tijdreiziger]

Now I'm pretty curious what kind of files they are, that they're so old yet still important?

[bosse]

I assume it's letters to friends and family, some work journals, investment spreadsheets, things like that.