Well ... from an OldFart's perspective ...
Personally, I have every single piece of information I have generated since I started using computers archived ... That's from the late 1960s. It's not exactly difficult. ASCII and redundancy are fairly close to immortal, in the right hands.
Note I'm talking about "information", not "formatting" ... There is a BIG difference, which is often lost on kids these days. Alphanumerics, punctuation, CR/LF, and white-space are where it's at when you want to retain information indefinitely.
Now ask me what my .fav programming language is, other than assembler :-)