This article explains what XSD files are, how to open them, and how to convert them to another file format.
What is an XSD file and how do I open it?
A file with the XSD file extension is most likely an XML schema file; a text file format that defines validation rules for an XML file and explains the XML form.
Because they are schema files, they provide a model for something else, XML files in this case. For example, an XSD file might require the XML file to have certain boundaries, relationships, order, attributes, nested attributes, and other elements, as well as set constraints.
XML files can reference an XSD file with the schemaLocation attribute.
