Open XML is an open ECMA 376 standard and is also approved as the ISO/IEC 29500 standard that defines a set of XML schemas for representing spreadsheets, charts, presentations, and word processing documents. Microsoft Office Word 2007, Excel 2007, and PowerPoint 2007 all use Open XML as the default file format.
The Open XML file formats are useful for developers because they use an open standard and are based on well-known technologies: ZIP and XML.
The Open XML Format SDK 2.0 is built on top of the System.IO.Packaging API and provides strongly typed part classes to manipulate Open XML documents. The SDK also uses the .NET Framework Language-Integrated Query (LINQ) technology to provide strongly typed object access to the XML content inside the parts of Open XML documents.
- Requirements:
Supported Operating Systems: Windows Server 2003; Windows Vista; Windows XP Service Pack 2
This download requires the following:
- The Microsoft .NET Framework version 3.5.
- Up to 120 MB of available disk space.
“Be aware that it’s a 90MB download (about 120MB installed). About 100MB of it is documentation. The library itself (DocumentFormat.OpenXml.dll) is 3.5MB” as specified in windowsclientdevelopment.
The Open XML Format SDK 2.0 went live on April 7, 2009, and is now up for grabs via the Microsoft Download Center. The SDK, and the underlying System.IO.Packaging API enables developers to leverage a simplified manipulation process involving OpenXML packages. And when it comes down to manipulation of OpenXML packages, version 2.0 of the SDK brings to the table support for strongly typed part and content classes.
“In version 1 of the Open XML SDK we released the Open XML Packaging API, which allows you to create, open and manipulate Open XML files at the package and part level. In the first CTP of version 2 we released the Open XML Low Level DOM and Stream Reading/Writing components, which allow you to create and manipulate objects within xml parts contained in an Open XML package. In the second CTP of version 2 we are providing schema level validation functionality,” revealed Brian Jones, Office program manager.
In addition, the April 2009 CTP of Open XML Format SDK 2.0 permits OpenXML documents to be validated. The validation functionality added to the latest version of the SDK is designed to permit developers to perform validation of Open XML docs in relation to variations of the Open XML Format. Essentially what validation support is designed to do is to help reduce the possibility of invalid or corrupt Open XML files.
“Manipulating Open XML Formats by using the Open XML Base layer makes it much easier for you to work on the Open XML files, but doing so does not guarantee the production of valid Open XML files. The new Schema Level Validation component provides a mechanism to help you discover Open XML errors within files and in your code. This component assists you in debugging and validating Open XML files based on the schemas,” Jones added.
This release includes a high-level DOM (document object model) for Open XML development, as well as several tools to streamline Open XML development:
* The OpenXmlDiff utility identifies differences in the markup in two Open XML documents.
* The Open XML Class Explorer helps you determine which strongly typed class to use for a specific task, and includes the text of the relevant section of the ECMA-376 spec for each class.
* The Open XML Document Reflector takes a target document as input, and with a few clicks it shows you the C# code needed to generate that document (or a section of it) with the Open XML SDK.
Sample code that supports the scenarios described in the series of articles titled Creating Documents by Using the Open XML Format SDK 2.0 (Community Technology Preview)
The first article is located at:
http://msdn.microsoft.com/en-us/library/dd440953.aspx
Some brief overview can be seen from the link
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