Mark,

The root of a number in XL is the reciprocal of the root that you want ie
=YourNumber^(1/12)

Please do not multi-post to different newsgroups it is not encouraged for
various reasons

Regards

Sandy

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"Mark" wrote in message
...
Hello,

I am currently undertaking some statistical analysis in excel but have
encountered a data problem, my data is annual, and i need it monthly,
hence
need to take the 12th root of the numbers, but this doesnt seem available
in
excel, can you please advise

kind regards