So I found a solution for other PC users who don't have Excel 2007 or later. Just register the colurmunki and use the "colormunki online" function to upload a given palette. the x-rite website then allows you to download your palette in a Lab file (excel in my case).
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Re: [Digital BW] Colormunki Design Exporting LAB values
2010-12-31 by Yan