No specific info about version 6.0. Please visit the main page of NDNQI® XML Validator on Software Informer.
Lets you perform accurate syntax checking tasks for HTML, XHTML, and CSS files.
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The Essential XML Editor is a tool for text-based XML document editing.
Perform four types of validation on a single web page.
Open XML Editor edits XML documents and has a XML tester and a DTD validator
Validate, transform and manage XML documents with XML ValidatorBuddy.