SharePoint Designer file
File type: Various data file
A .spdesignedited file is associated with Office SharePoint Designer, Microsoft's Windows application for creating and modifying SharePoint sites and web pages.
File type category:
Various data file
Date updated: September 27, 2026
Office SharePoint Designer is a specialized HTML editor and web design program from Microsoft. It is used to create and modify Microsoft SharePoint sites and web pages, and the .spdesignedited file extension identifies data associated with that work.
This is a legacy Windows-specific format related to SharePoint Designer's editing workflow rather than a general-purpose HTML or document format. Office SharePoint Designer is no longer a current Microsoft product, so files using this extension are mainly encountered in older SharePoint environments.
Open a .spdesignedited file with Office SharePoint Designer on Microsoft Windows. If the file does not open directly, open the related SharePoint site in SharePoint Designer and allow the application to handle the associated data.
If the required result is a SharePoint web page, open the related site in Office SharePoint Designer and use its editing or publishing features. Renaming the file to an HTML extension does not convert its contents.
Software applications that handle other tasks involving spdesignedited files:
Microsoft Windows
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