Curious why you haven't moved forward from Lotus 1-2-3 when there are free solutions out there that are better like Libra Office or Open Office?
If interested in converting older spreadsheets to Open Office then this might help:
https://forum.openoffice.org/en/forum/viewtopic.php?f=9&t=3726I stopped using Lotus 1-2-3 back around 1997 when I got Office 97 then when Open Office came out I switched away from Micro
$oft for a free office solution.
It took me a while to get use to not prepending
@ to my formula functions in Excel etc which Lotus 123 required for syntax.