How to extract data from a excel chart which has been pasted into word

[Larryk]

I have a excel chart in the word document, and I can't find the original excel contain the chart. How can I extract the data from the chart? The chart bacame a graphic object.
I found a support from microsoft, it didn't work.
http://support.microsoft.com/kb/300643/en-us

Thanks in advance for any help you can provide!