File Extension Library


  • Developer by: Microsoft Corporation
  • Category: Various data Files

What is an .SPDESIGNSHTML file?

.SPDESIGNSHTML file extension is created by Microsoft Corporation. .SPDESIGNSHTML has been classified as Various data Files.

.SPDESIGNSHTML is Microsoft Office SharePoint Designer file

The spdesignshtml file extension is associated with the Microsoft Office SharePoint Designer a HTML editing tool for Microsoft Windows that allows users to create SharePoint compatible sites.

The spdesignshtml file stores some kind of data used by Microsoft Office SharePoint Designer.

.SPDESIGNSHTML file format is deprecated and this file format is no longer supported.

Currently, .SPDESIGNSHTML file type is not actively used and is obsolete. This usually happens with system files in older operating systems, files from long-discontinued software, or with previous versions of some file types (documents, projects, images, etc.) that were replaced in later versions of the original programs.

How to open:

Due the variability and uncertainty of this file type group, there is no general information available, about how to open this various data file format. However most files with extension from this group are usually not meant to be opened or viewed directly. If there are associated applications or programs listed below the extension description, you can always try to check their website for additional informations on their forums or other type of customer support.For general information try to look at:Identifying unknown file formats

How to convert:

As far as we know, this .spdesignshtml file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

How to Open .SPDESIGNSHTML file on different platforms

Open .SPDESIGNSHTML File on Windows

  • Right-click a .SPDESIGNSHTML
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .SPDESIGNSHTML file and Select check box "Always use this app to open .SPDESIGNSHTML files" Press "Ok"


  • Right-click (or Ctrl + Left-click) the .SPDESIGNSHTML file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .SPDESIGNSHTML File on Linux

Right click on the .SPDESIGNSHTML file, choose "Open with" and select a program from the list above

Open .SPDESIGNSHTML File on iPhone

Select a file. If you don't see an application to open the .SPDESIGNSHTML file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .SPDESIGNSHTML File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .SPDESIGNSHTML files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .SPDESIGNSHTML files

  1. You need to update the application that you normally use to open .SPDESIGNSHTML files. Only the latest version of the software supports the current .SPDESIGNSHTML file format
  2. You need to check the .SPDESIGNSHTML file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)