Results of exporting

When you export, Fireworks generates all the files you need to recreate your image on a Web page:

It generates an HTML file that contains the necessary JavaScript and tables to reassemble a sliced image or to create rollover functionality. Fireworks-generated HTML always contains a link to the exported image and sets the Web page background color to the canvas or matte color of the graphic.
For more information about using the HTML generated with Fireworks, see Fireworks HTML overview.
It generates one or more image files, depending on how many slices you created in your document and how many states you included in buttons or rollovers in your document.
It generates, if necessary, a file called Shim.gif, which is a transparent, 1-pixel by 1-pixel GIF that Fireworks uses in the HTML to fix spacing problems when the sliced images are reassembled in an HTML table. You may choose whether or not Fireworks exports a shim. See Using shims or nested tables when slicing.