I can change the files extension from ZIP to XLSX once saved and it opens
without problem.
But I'd rather not have to go around the bushes when it should save with the
proper extension in the first place.
Thanks...
I went back to IE7 and everything is working perfectly again.
Thanks for the advice. I guess I can live without IE8 for a while!
All the best...
I'll try re-installing IE8 and following the suggestion.
Details on the link below. Thanks...
http://jdbausch.blogspot.com/2009/05/internet-explorer-8-with-outlook-web.html