One of the needs to use Open XML SDK is to create documents on server side. In case of Open XML, it is recommended to create a document from another one rather than creating a document from scratch. After creating a copy of a document, you can modify...

Suppose you are developing a PowerPoint add-in and want to use the PresentationCloseEvent to present users with a custom dialog to save the presentation only if the new presentation contains valid changes to be saved. Here is a code snippet from one...