Looks like you can export publisher documents in HTML format:
Publish HTML
This selection enables you to publish your publication as a Web page.
Click the File tab.
Choose Save & Send and selectPublish HTML.
Under Publish HTML, you can choose to save in one of two formats:
Web Page (HTML): This will save your publication as an HTML document, and create a folder containing supporting files such as images and sounds that appear on the page.
Single File Web Page (MHTML): This option creates a single MHT document with the supporting files embedded.
Click Publish HTML, and in theSave Asdialog select a location and enter a file name.