As explained in this thread, the home files created with the Export to HTML5 plug-in contain a [font=courier new]Home.xml[/font] entry that respects this DTD. This XML file stores the 3D models, texture images and icons used by furniture and other objects in the attributes named [font=courier new]model[/font], [font=courier new]icon[/font], [font=courier new]planIcon[/font] and [font=courier new]image[/font]. The value of this attribute can be a file stored in the same ZIP file as [font=courier new]Home.xml[/font] (for example "4/model.obj"), or a URL of a file stored on the same server as the ZIP file (security might prevent to reference a file on another server). This URL can reference directly a file like in
[font=courier new]http://www.sweethome3d.com/textures/ete ... ercles.png[/font]
or reference a file within a zip file like
[font=courier new]jar:http://www.sweethome3d.com/models/contr ... tterie.zip!/batterie.obj[/font]
when it starts with [font=courier new]jar:[/font] (the previous URL references the file [font=courier new]batterie.obj[/font] in the ZIP file [font=courier new]http://www.sweethome3d.com/models/contr ... tterie.zip[/font]).
Hope this can help you to organize your data.