Home >Online Product Documentation >Table of Contents >Diffing a Pair of XML Documents
This section describes how to use Stylus Studio to diff a pair of XML documents.
Before continuing with this section, you should read Overview, which describes basic information about the Stylus Studio Diff tool, and The XML Diff Viewer, which describes features of the XML Diff Viewer and how to use them.
Stylus Studio displays the XML Diff Viewer.
Stylus Studio displays the Open dialog box.
You can drag and drop a file into the entry field to load the document in the XML Diff Viewer.
By default, Stylus Studio runs the diff calculation automatically when you select the target document. If the default On changes setting has changed, you need to run the diff calculation manually by clicking the Calculate diff button ( ).