Updated handling of Microsoft Office documents in Microsoft Outlook for iOS and Android

Outlook for iOS and Android will prioritize standalone Word, Excel, or PowerPoint apps for opening documents over the Microsoft 365 app, starting early June 2024. Organizations should adjust app management policies and inform users about this update.

With this feature update, if both the Microsoft 365 app and the standalone apps for Microsoft Word, Microsoft Excel, or Microsoft PowerPoint are installed on a user’s mobile device, the standalone app will be given preference for opening its respective file type over the Microsoft 365 app.

When this will happen:

General Availability (Worldwide, GCC, GCCHigh, DoD): We will begin rolling out early June 2024 and expect to complete by mid-July 2024.

How this will affect your organization:

Currently in Microsoft Outlook for iOS and Android, if users have both the Microsoft 365 app and the standalone apps for Word, Excel, or PowerPoint installed on their device, users will be prompted in Outlook mobile to open the document with the Microsoft 365 app. With this change, the user will instead be prompted to use the standalone app that fits the document type. 

What you need to do to prepare:

Review the app management policies for your organization. If you currently restrict users to only the use of the Microsoft 365 app for document opening and editing, consider allowing the standalone apps for Word, Excel, and PowerPoint for use as well. You also may want to notify your users about this change and update your training and documentation as appropriate.

Message ID: MC788952


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I've been working with Microsoft Technologies over the last ten years, mainly focused on creating collaboration and productivity solutions that drive the adoption of Microsoft Modern Workplace.

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