To use the SubjectsPlus 4 LibGuides Importer, you'll need to obtain an XML dump of your guides following these instructions.
Place the unzipped XML file you receive in the /control/includes/ folder. You'll need to save the file as libguides.xml.
Now visit the /control/includes/libguides_importer.php page. You'll see a select box that lists the guides in your LibGuides XML file:
Choose the guide you would like to import and click "Import Guide".
If successful, you can visit the newly importer guide to edit the guide's content.