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With the desired XML document opened in the active editor tab, choose Tools | XML Actions | Generate XSD Schema from XML File on the main menu. The Generate Schema From Instance Document dialog box opens. and select the desired file in the dialog that opens.
We can use Eclipse IDE to easily generate XML from the XSD file. Just follow the below steps to get XML from XSD. Select XSD File in project, right click for Menu and select Generate > XML File… Provide the XML file Name and XML File location in the popup window.
The XML Schema Definition (Xsd.exe) tool generates XML schema or common language runtime classes from XDR, XML, and XSD files, or from classes in a runtime assembly.
the Microsoft XSD inference tool is a good, free solution. Many XML editing tools, such as XmlSpy (mentioned by @Garth Gilmour) or OxygenXML Editor also have that feature. They're rather expensive, though. BizTalk Server also has an XSD inferring tool as well.
edit: I just discovered the .net XmlSchemaInference class, so if you're using .net you should consider that
You can use an open source and cross-platform option: inst2xsd from Apache's XMLBeans. I find it very useful and easy.
Just download, unzip and play (it requires Java).
Trang is the best option here. Open source and cross platform (although Java is required)
From the Trang Website:
Trang converts between different schema languages for XML. It supports the following languages
- RELAX NG (XML syntax)
- RELAX NG compact syntax
- XML 1.0 DTDs
- W3C XML Schema
A schema written in any of the supported schema languages can be converted into any of the other supported schema languages, except that W3C XML Schema is supported for output only, not for input.
Trang can also infer a schema from one or more example XML documents.
Download Link
In VS2010 if you load an XML file into the editor, click the XML menu >> Create Schema.
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