The other day, when i asked for some details about outlets from my telephone / cellphone provider by email they replied back to me and sent an attachment (spreadsheet) in ods format which was a pleasant surprise.
In the "past" I have only seen proprietary formats like .xls, .doc, .ppt in my emails as attachments. I used to tear my hair out when I saw haphazard tables and overflowing text whenever I opened "word" documents in LibreOffice and OpenOffice. The less said about opening Excel with "macros" in LibreOffice / OpenOffice the better. Guess, those days of excruciating pain are finally over and we can all move towards a bright future where data is shared in Open document formats.
Three cheers ! for the silent revolution brought about by LibreOffice / OpenOffice / OASIS and co.