Building Excel Files with C#

calendar_today Asked Nov 9, 2009
thumb_up 7 upvotes
history Updated April 16, 2026

Question posted 2009 · +6 upvotes

I need to create an excel file via C#. I have read a few places that creating an XML document is the easiest way to do this? I need to have multiple named tabs and be able to specify that particular cells are text, date time, numeric, etc… Any suggestions or good examples?

Accepted answer +7 upvotes

You need the System.IO.Packaging API – this will allow you to generate .xlsx documents as described in Inserting Values into Excel 2007 Cells. The Excel 2007 format can also be used by Excel 2003 and XP with the free Microsoft Office Compatibility Pack installed.

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