Hi vincent,

I'd suggest you can search the KB library with the key word "office .net sample" for some .net sample at http://support.microsoft.com. You can also
search some .net sample with the key word "excel add-in .net" etc. However, I haven't heard there is one office .net library so far.

Please feel free to let me know if you have any further questions.

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Wei-Dong Xu
Microsoft Product Support Services
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