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How to prevent automatic conversion from .CSV to .XLS

Posted By:      Posted Date: September 13, 2010    Points: 0   Category :ASP.Net
Hi, I have a web page which generates a .CSV file based on some user input. When this file is downloaded by the user, the file is being automatically converted to .XLS. Any idea how I can prevent this? For example, I am redirecting the user to the URL of the generated file, like below URL: http://localhost/reports/Work/aa.csv But the download window appears to download "aa.xls"!

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