extract ppt from office word using OpenXml format through c#

I want to extract a flash object from a word doc using OpenXml.I have done it other way round but it is not working as, if there are many flash objects then the processing time got hampered and henceforth i think openxml is 开发者_运维知识库more suitable>please someone help me in doing the same .I am coding in c#

Use this: Standalone tool for extracting embedded Office Open XML objects from files