A: 

Hello All,

Open XML SDK 2 was the cause, I avoided Open XML SDK 2 and my AddIn works perfectly now. Rebuilt my project from scratch using Microsoft Interop to read/write Microsoft Office 2010 documents.

Issue is that there is not much documentation around for developers to read. I've done the grunt work reading articles and figuring out the problem myself.

Hopefully others would not have to face the same ordeal.

Hamza  2010-10-12 07:37:40

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