SharePoint Designer site map file
File type: Internet related file
Files with the .spdesignsitemap file extension are site map data files associated with SharePoint Designer.
A file of this type stores a saved site map used by SharePoint Designer when working with a Microsoft SharePoint site.
File type category:
Internet related file
Date updated: October 4, 2026
Record marked as obsolete and not updated for a long time.
The .spdesignsitemap file extension is associated with Microsoft SharePoint Designer, an HTML editor and web design program for creating and modifying Microsoft SharePoint sites and web pages.
The .spdesignsitemap file contains a saved site map for a SharePoint site. It is supporting data for SharePoint Designer.
This file format is obsolete and was intended for use with the Windows version of SharePoint Designer.
On Microsoft Windows, try opening the .spdesignsitemap file with Microsoft Office SharePoint Designer. It may be an internal or supporting file, so it might not display as a standalone document; opening the associated SharePoint site in SharePoint Designer is usually more appropriate.
This file format is obsolete, and current software may not support it.
The .spdesignsitemap file is supporting data for SharePoint Designer rather than a standalone document format, so direct conversion is not generally applicable.
If the file can still be used with SharePoint Designer, the site's structure can be viewed there and recreated in another tool. A direct export to a current site map format should not be expected.
Software applications that handle other tasks involving spdesignsitemap files:
Microsoft Windows