joshl - yes that is the correct filename. I have set Opera to send 'do not trcck' so if this file is just those settings for the browser to use that is ok. If it is opera or something else tracking me that is not ok. That is all I would like to know - so if it is the latter I can delete it.
The file content is
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
cheers