X 10.1.9 or later. In addition to text documents, the converter also supports Excel workbooks and PowerPoint presentations saved in Open XML format. In Office 2004 11.4, the converter runs in the ...

Open XML File Format Converter for Mac 1.0 is a 45 MB download and takes up 182 MB on disk. It's available in localized English, German, Spanish, French, Italian, Japanese, Dutch and Swedish versions.