Im-/Export of ODF files?

[Michael Gerbracht <smartmails@...>]

Has anyone looked at importing and/or exporting ODF (open document format,
e.g. used by open office) files using lua? I am mainly interested in
writing and reading spreadsheet tables. Using CSV files is not sufficient
for my purposes.

If not: Can you suggest a good way to start? Do you need to start from
scratch or can you use solutions from other languages? However, I would
like to keep my program platform independent, so I do not want to use a
solution that works with lua but only works on linux/windows.

Thank you very much,
Michael Gerbracht