Populate an excel file from datagrid winforms

How can I populate an excel file from datatable to excel file
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LeopoledAuthor Commented:
sorry from datatable not from datagrid
Éric MoreauSenior .Net ConsultantCommented:
you want to create a new Excel file with the content of your datatable or fill an Excel template?

for the first option, check http://emoreau.com/Entries/Articles/2009/04/Using-LINQ-and-XML-Literals-to-transform-a-DataTable-into-a-HTML-table.aspx.

for the second option, check http://emoreau.com/Entries/Blogs/2009/01/Another-way-to-manipulate-Excel-files.aspx

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LeopoledAuthor Commented:
I need to generate a excel sheet from datatable in c# using arrays to load each column in excel from array. Regular way going from one row and place data to excel kind of slow so I need to do it from array to excel. your answers is not quit correct. I need a specific answer.
LeopoledAuthor Commented:
Also it should be in web forms.
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