When I export a GridView to Excel 2007 I get an error message:
The file you are trying to open < > is in a different format than specified by the file extension. Verify that the file is not corrupted and is from a trusted source before opening the file. Do you want to open the file now?
This worked OK with Excel 2003. I called Microsoft and they told me I was using a non-release version which is not true. My Office 2007 was downloaded from MSDN in Dec 2006. I found a reference on the Internet that said this problem would be fixed in the released version but it is not.
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