How to read and write excel data through .net [closed]

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How to read one excel file and 开发者_运维技巧write the content of the excel file to another excel file?

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I'd recommend the Open Office XML SDK:

http://msdn.microsoft.com/en-us/library/office/bb448854.aspx

The benefit of this is that you can create a spreadsheet without having Excel on the system.