[ Thanks to Marco Fioretti for this
link. ]
“Since the OpenDocument standard for office files covers
spreadsheets, the productivity suites based on it, such as
OpenOffice.org (OOo) and KOffice, can share spreadsheets between
applications–theoretically, that is. In practice, there are still
a couple of obstacles for this kind of interoperability among
OpenDocument spreadsheet processors, regardless of their origin and
license. One is the issue of macros, as I discussed earlier. A
bigger one is that, while formatting of spreadsheets is covered by
OpenDocument, the actual formulas that make them useful
aren’t…”