I opened a 27 page Xara file that I'd worked on in Web Designer Premium over the past few months.

I edited the color balance on one photograph and then tried to EXPORT and PUBLISH the change but all I can get is the following ERROR message:
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Error from Xara Web Designer MX Premium
Unable to find the filter to import that file with.

OK [button] Help [button]
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I closed MX 8 and went back to Web Designer Premium 7. I opened the same web file and everything still worked. I did get a warning about the web file being from a higher number version and that some features would be disabled.