ArgumentOutOfRange with WordProcessingDocument.Open
December 31, 2012There is apparently a bug in the Open XML SDK 2.0 when trying to work with a document that contains a Ribbon extension using the namespace for Office 2010 <customUI xmlns=”http://schemas.microsoft.com/office/2009/07/customui“> If the document contains a customUI12 part, you get the error ArgumentOutOfRangeException when using WordProcessingDocument.Open. The problem appears to be fixed in Open XML […]