Excel 2007 Extension Warning On Opening Excel Workbook from a Web Site

VSOfficeDeveloper: Known Problems, Bugs, and Fixes — Tue, 11 Mar 2008 23:19:00 GMT

Web sites that use an XLS MIME type to open content in Excel 2007 from a web site may see warning alert that file is in a different format than its extension. This is a new alert to Excel 2007. The reason for the alert, and things you can do to work around

Excel 2007 Extension Warning On Opening Excel Workbook from a Web Site

Noticias externas — Tue, 11 Mar 2008 23:46:28 GMT

Web sites that use an Excel 97-2003 MIME type to open conent streamed from the web server may find that

ASP.NET MVC Tip #2 - Create a custom Action Result that returns Microsoft Excel Documents

Stephen Walther on ASP.NET MVC — Tue, 17 Jun 2008 02:19:34 GMT

In this tip, I show you how to create a custom action result that you can return from an ASP.NET MVC

Excel 2007 "different format than specified" warning

Support — Fri, 27 Feb 2009 21:53:23 GMT

LiveCompare has an "Export to Excel" feature that is available whenever you're examining the details