ls, org-export-odt-preferred-output-format doesn't support ods or xlsx. Libreoffice is incapable of converting odt to ods, which is the main reason, as far as I can see, for org-export-odt to not deliver this service.
After exporting my calldata reports to odt, I end up `selecting all' in libreoffice, creating a new spreadsheet and pasting all into this new spreadsheet. Of course, as a org-mode user, I hate all this interaction with GUI programs. I was wondering whether there is a better way to do this, or if a minor add-on would facilitate this (C-c C-e s|S maybe?). regards, Joost -- Snow B.V. http://snow.nl
