I met the same problem!!! this problem also occurs when you set the InnerXml property of an OpenXmlElement... the descendants all turn into OpenXmlUnknownElement!!

1) no strong-typed CoreProperty Class defined for the part's RootElement 2) no property for accessing the coreProperty node 3) the Package.AddCoreFilePropertyPart() method doesn't really allow you to create a valid usable CoreFilePropertyPart, it adds the file as well as the relationship,but thereafter,you find no way to add a rootElement... i've

Install a PC emulator over your Mac system ,and use a ''docx manager'' that you called so for windows such as the tools come with the SDK.

the WordprocessingDocument.Open() method does have a parameter named Autosave to allow disable of Autosave feature of CTP august 2009, but the WordprocessingDocument.Create() doesn't have the same parameter, so how to disable autosave feature for a newly created document?

The cause is that such Class as Footnote(or Endnote) with type=''Separater'' shall not be modified, or they may cause the problem above,despite word parsing it without any prompt by just ignoring the modified node.

Unhandled System.IO.FileFormatException Message=''Compression part has inconsistent data length'' //note:- this is not the exact message but translated from chinese Source=''WindowsBase'' StackTrace: in MS.Internal.IO.Packaging.CompressStream.UpdateUncompressedDataLength(Int64 dataLength) in MS.Internal.IO.Packaging.CompressStream.Read(Byte[] ...

i am working on styles too these days, i don't know what is the laborous work you've done in your code, but i would like to hint whether you've noticed that the SDK has provided certain properties in the Style class ,through which your code could directly access the Style children which are mostly of single key-value pairs,read the code hereunder:

this none to do with the SDK, but a stream writting problem. an incorrect stream length may corrupt the package... just be cautious of this problem.

Problem Solved: by Using Maindocument.AddNewPart(); with no root elements pre-difined. this is kind of different with adding a Headerpart or Footerpart, ImagePart ,etc.

I need to add comments to a WordprocessingDocument,however: WordprocessingDocument. MaindocumentPart.WordprocessingCommentPart has no public constructor nor does Maindocument class provide any method to add or create an instance of WordprocessingCommentPart ... what can i do with ''WordprocessingCommentPart == null''? also to ask: how to ...