Export data in Grdiview to Excel using ‘Microsoft.Office.Interop’ in C#

try this:-

http://www.codeproject.com/Articles/164582/8-Solutions-to-Export-Data-to-Excel-for-ASP-NET

I need to Use 'Microsoft.Office.Interop’  dlls in my project.

Hello:
Using Office automation  in server environment is not recomended by microsoft:
"Microsoft does not currently recommend, and does not support, Automation of Microsoft Office applications from any unattended, non-interactive client application or component (including ASP, ASP.NET, DCOM, and NT Services), because Office may exhibit unstable behavior and/or deadlock when Office is run in this environment."

http://support.microsoft.com/kb/257757

Instead, I would suggest using xslt transform or third party component:
http://ewbi.blogs.com/develops/2005/01/create_excels_s.html
http://www.aspose.com/categories/.net-components/aspose.cells-for-.net/default.aspx

Best regards

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