so nun...aus den faq von openoffice.org:
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Does OpenOffice.org software open Microsoft Word, Excel and PowerPoint files?
Yes. Go to File > Open and open your Microsoft file. Similarly, saving in Microsoft formats will allow Microsoft users to open your OpenOffice.org files.
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http://www.openoffice.org/FAQs/faq-asian.html#6
klingt doch gut.