Refer the below and download the sample code in vb.net/c#

http://www.add-in-express.com/free-a...xcel-addin.php

Step by Step..
http://www.add-in-express.com/docs/n...xll-addins.php

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Jacob


"Faraz A. Qureshi" wrote:

Sure am interested in capturing a know-how of XLL addins and their utility.
Any source, link, guidance?
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Thanx & Best Regards,

Faraz!