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5 years is not a long time for information to be retrievable. By comparison, my current version of office easily allows saving (not just opening, but saving) i

5 years is not a long time for information to be retrievable. By comparison, my current version of office easily allows saving (not just opening, but saving) in versions compatible with office '97. That's ~17 years of saving backward compatibility.

yuhong 13y ago
I think you can even save in Excel 5.0/95 format in current versions of Excel.
- bananas 13y ago
  You can open wordperfect 5.1 (1989) in Office 2013 no problems. Numbers can't even open ODS files at all, destroys iWork 09 documents and pretty much sticks a fork in most xslx documents.