Duplicating Word document using OpenXml and C#

Question

I am using Word and OpenXml to provide mail merge functionality in a C# ASP.NET web application:

1) A document is uploaded with a number of pre-defined strings for s

Answer 1

I have done some very similar things, but instead of using text substitution strings, I use Word Content Controls. I have documented some of the details in the following blog post, SharePoint and Open Xml. The technique is not specific to SharePoint. You could reuse the pattern in pure ASP.NET or other applications.

Also, I would STRONGLY encourage you to review Eric White's Blog for tips, tricks and techniques regarding Open Xml. Specifically, check out the in-memory manipulation of Open Xml post, and the Word content controls posts. I think you'll find these much more helpful in the long run.

Hope this helps.