Check out the latest version of LibreOffice (4.2), interoperability with OOXML is way improved, and as always, there are some fixes in Calc/Excel https://www.li

Check out the latest version of LibreOffice (4.2), interoperability with OOXML is way improved, and as always, there are some fixes in Calc/Excel https://www.libreoffice.org/download/4-2-new-features-and-fixes/ https://www.libreoffice.org/download/4-2-new-features-and-fi... Maybe LibreOffice isn't perfect yet, but I believe it will get there.