Before you can preview a frameset in a browser, you must save the frameset file and all of the documents that will display in the frames. You can save each frameset file and framed document individually, or you can save the frameset file and all documents appearing in frames at once.
Save a frameset file
Select the frameset in the Frames
panel or the Document window.To save the frameset file, select File > Save Frameset.
To save the frameset file as a new file, select File > Save Frameset As.
Save a document that appears in a frame
Save all files associated with a set of frames
Select File > Save
All Frames.
This saves all open documents in the frameset, including the frameset file and all framed documents. If the frameset file has not yet been saved, a heavy border appears around the frameset (or the unsaved frame) in the Design view, and you can select a filename.