The Document Foundation proudly calls its new LibreOffice 4.1 office suite "not only the best but also the most interoperable free office suite ever". The 4.1 milestone release features a large number of improvements in the area of document compatibility, which increases the opportunities of sharing knowledge with users of proprietary software while retaining the original layout and contents. Numerous improvements have been made to Microsoft OOXML import and export filters, as well as to legacy Microsoft Office and RTF file filters. Other new interoperability-focused features include font embedding in Writer, Calc, Impress and Draw and import and export functions new in Excel 2013 for ODF OpenFormula compatibility.
