A Fast Way to Create a Large Folder Hierarchy in SharePoint
Creating a large folder hierarchy in SharePoint Document Library using Microsoft's standard GUI takes a lot of timewhich is unnecessary. Here's an easier way:
Create the folder hierachy first on the hard disk.
In Internet Explorer, select Open from File Menu.
Provide just the link of the document libraryfor example, http://servername/DocLibName, without incuding allitems.aspx.
Check Open for the Web Folder option and press OK.