Default Office Apps file extension with an App Policy

During the initial installation or update of Office software, it’s possible that the default file format was changed from docx > odt (OpenDocument Text), xlsx > ods (OpenDocument Spreadsheet), pptx (PowerPoint Presentation) > odp (OpenDocument Presentation).

There is a way to set the default file extension by creating a policy and deploy it for all users or deisgnated group if needed.

*You need to be Global Administrator to complete this.

1. Go to intune.microsoft.com (Opens in new window or tab) > Apps > Policies for Office apps > +Create
   

2. In Basics section, Name your policy > Click Next
   

3. In Scope section, select This policy configuration applies to all users (unless the client requests to be for a select users) > Click Next
   

4. In Policies section, Search for Default File Format policy, and click on it. You can confirm the application that is being applied by looking at the Application icon.
   

5. In the Policy selected, in Configuration Settings select Enabled and pick the default file format from the drop-down list. > Click Apply
   

6. Follow the Steps 4-5 for each office application in need.
   

7. Review your changes and click Create