Excel Add In development

I want to develop Excel Add-In using which i want to read data from its different columns and send them to my database.

So can you suggest me goo开发者_StackOverflowd eBook or any website link which teaches the best add in development....???

ExcelDna is a great framework for developing Excel Addins. And its free. http://exceldna.codeplex.com/

This site provides help on the latest JavaScript Add-ins for Excel: http://microsoft-office-add-ins.com

I'd suggest starting with one of the samples here: https://github.com/OfficeDev?utf8=%E2%9C%93&query=excel

This sample, particularly, is helpful https://github.com/OfficeDev/Excel-Add-in-VisualizeExcelData