Hello! I am using operating system window XP and MS office 2003. Whenever my friends send any excel file which is generated in excel 2007 with the help of Outlook 2007.When I download the file and try to open it shows as a zip file and every time to open that kind of file I have to manually configure the extension to .xlsx instead of my outlook 2003 it is not opening as excel file. And even if I will send the excel file to my friends they receives the file in the zip format but I have never compressed my files. So suggest me some idea to solve this trouble.
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