XMLSpy is
an excellent editor for xml documents, xsl, dtd, and xsd documents.
Even though you already know about xml technologies, you would have
earlier developed your documents using a simple text editor.
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But
using XMLSpy is sure to increase your productivity multifold. The features
of XMLSpy are plenty and it is a pleasure working with that product.
The interface
is very user friendly. You can work on multiple documents using this
editor. Checking the well-formedness of the document and validating
an xml document against a schema or dtd is very easy.
Separate
validation window is available for that purpose. You can generate schema
from an xml document and even an xml instance document from a schema.
You can also import data from a database to the xml instance.
Creating
Xpath expressions are very easy with XMLSpy. You can convert an xml
document into html using an xsl from within the XMLSpy IDE. You can
try these features using a free home edition available and then switch
on to a professional or enterprise edition.