Hi Gents Thanks for the suggestions. They definitely made me look at different ways to solve the problem. I think you both assume too much ability on my part. The solution for me was to go to ArcGIS online, load my file from the web, then in the file go to More options>Set view definition>Define fields, switch off those not to be viewed and then resave the file. When viewed from the survey results, the "off" fields indicate that these data are not available. Again, many thanks
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