Requirement: How can I create an MS Excel compatible spreadsheet file from my app without running Excel?

I would like my application to output user-generated information to spreadsheet files in Microsoft Excel fomat. However, I I don't want the overhead of having to install and run Microsoft Excel on each machine just to acheive this function. I also want to avoid the performance overhead of having to use Office Automation on my server.



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Creating XLS/XLSX/CSV/HTML files from .NET app with GemBox.Spreadsheet
This example shows how to create XLS/XLSX/CSV/HTML files by using only GemBox.Spreadsheet (no need for Automation).
(C#.NET, VB.NET\.NET 2.0 Winforms )
Creating an Excel spreadsheet XLS file direct from your .Net app with SpeadsheetGear
In this simple example we show how you can use SpreadsheetGear to output directly from your .Net app into a .XLS file which is 100% MS Excel compatible, without resorting to office automation.
(C#.Net. VB.Net\.Net 2.0 Winforms)