Google sitemap

On Google/webmaster area where you submit your sitemaps ect is coming back with :Unsupported file format

Your Sitemap does not appear to be in a supported format. Please ensure it meets our Sitemap guidelines and resubmit.

How do we change format or what is happening to cause this

I think this link should help you set up the correct sitemap file you need [url][/url]

All the best


Yes this is the one I followed befored and used, is there a reason for format wrong