You can export topic sets to an XML file to use that same topic set in a different ATG Search installation, or for troubleshooting purposes. To export a topic set:
On the Search Workbench tab, select Topic Sets from the Show menu.
On the Topic Sets page, click the Export button () for the topic set you want to export.
Check the Global Pattern Macros box to export macro information with the topic set.
Click Export. The export uses your browser’s file download defaults.