You can see here : http://www.openoffice.org/issues/show_bug.cgi?id=79123 and http://en.wikipedia.org/wiki/Ooxml (search "openoffice") that this release contains a filter able to open .docx documents (it seems that .xlsx are not supported yet). Also you can open OpenOffice.org 2.3 and go in File->Open and you'll see "Microsoft Word 2007" format in the drop down list.
I'm uploading here a .docx file here so you can check it out yourself.
You can see here : http:// www.openoffice. org/issues/ show_bug. cgi?id= 79123 and http:// en.wikipedia. org/wiki/ Ooxml (search "openoffice") that this release contains a filter able to open .docx documents (it seems that .xlsx are not supported yet). Also you can open OpenOffice.org 2.3 and go in File->Open and you'll see "Microsoft Word 2007" format in the drop down list.
I'm uploading here a .docx file here so you can check it out yourself.