1 The XML file you wish to validate should be open in the
active document window.
2 On the Tools menu, click Validate
XML File.
3 Check the status bar to see the validation
result, or select the Errors tab in Tool View (Ctrl+Shift+2).
To Validate an XML Document from Project View...
1 The project that contains the XML file you wish to validate
should be open and visible in the Project View workspace.
2 Right-click on the filename in
Project View.
3 Click on the Validate context menu item.
4 Check the status bar to see the validation
result, or select the Errors tab in Tool View (Ctrl+Shift+2).
Toolbar shortcut: 
Tip: To perform batch validation, the files you want to
validate must belong to a project. In the Project View, right-click on
the project name and select Validate All Files. The Tool View is
displayed with the validation results (in the Errors pane).
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