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04 Mar 2010  
rattwater

windows 7 ultimate
 
 

I am no expert here, and I would rely on captain Jack for the correct answer, but it seems to me that you may well be a little confused between "windows 7", (your operating system), & " Microsoft Office", (your application program). The extension "xlsx" applies only to excel files generated through "Office 2007", not through "windows 7". If you're still using Microsoft Office 2003, and not Microsoft Office 2007, then your extension will be just xls. This could be the source of your problem, although I do not understand what you mean by "Saving in the standard excel format that comes with Windows 7". One of us is a little confused. Not sure whether it is you or me . Apologies if I have underestimated your knowledge.
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