Microsoft Office SharePoint Designer file
File type: Various data file
A .spdesignshtml file is a Microsoft Office SharePoint Designer data file.
It belongs to Office SharePoint Designer, Microsoft's Windows application for creating and editing SharePoint-compatible websites.
File type category:
Various data file
Date updated: October 4, 2026
Record marked as obsolete and not updated for a long time.
Microsoft Office SharePoint Designer was a Microsoft Windows HTML editing and website-design application focused on SharePoint sites. An .spdesignshtml file stores data used by the application.
The format is obsolete and is associated with the discontinued Office SharePoint Designer software.
Open the .spdesignshtml file with Office SharePoint Designer on Microsoft Windows. Because the format is obsolete, current Windows systems may require the original compatible software and any related SharePoint site files.
If Office SharePoint Designer can open the file, use its site-management or save and publish features to recover the related SharePoint content.
Software applications that handle other tasks involving spdesignshtml files:
Microsoft Windows
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