If you downloaded the *numbers* from the web then the probably have spaces
or non-breaking spaces [Char(160)] attached so try something like
=SUM(TRIM(SUBSTITUTE(G17,CHAR(160),"")))

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HTH
Sandy
In Perth, the ancient capital of Scotland
and the crowning place of kings
sandymann2@mailinator.com
Replace@mailinator.com with @tiscali.co.uk
>I have copied some data down from a web site first into a text file and
>then
[quoted text clipped - 12 lines]
>
> Thanks