You can purchase an add-in which can do it for you, for example:
http://people.revoledu.com/kardi/tut.../Resources.htm

But before you consider using Excel for advanced statistical analysis, make
sure you're aware of some of its pitfalls:
http://www.cs.uiowa.edu/~jcryer/JSMT...%20analysis%22

Excel is optimized, and designed, for financial modeling and analysis, not
statistical analysis.

Dave
--
Brevity is the soul of wit.


"CL" wrote:

Is there any way to do K-mean clustering in Excel?

I know it's possible to do that in Matlab or SPSS but my company doesn't
have these softwares but MS Office.