If you want to work with DTD files that you created outside of
the product, you can import them into the workbench and open them in the DTD
To import a DTD into the workbench, complete the following steps:
. Select and click
Fill in the fields in the Import wizard
Click Finish to exit the wizard and import
Select the DTD file in the Navigator view and double-click it to
open it in the DTD editor.
After you have imported a DTD file into the workbench and opened
it in the DTD editor, you can edit it manually.