check before: 2026-04-01
Product:
Microsoft 365 Apps, OneDrive, Purview Information Protection
Platform:
iOS, mobile, Online, World tenant
Status:
Change type:
New feature, User impact
Links:
Details:
Summary:
OneDrive for iOS and iPadOS will offer secure in-app preview of Word, Excel, and PowerPoint files without downloading, respecting existing Microsoft 365 security and compliance policies. This rollout begins in April 2026, is enabled by default, requires no action, and does not change file permissions or sharing.
Details:
[Introduction]
We're introducing an improved secure file preview experience for Word, Excel, and PowerPoint files in the OneDrive mobile app for iOS and iPadOS. With this experience, users can preview files directly within the OneDrive app without downloading them to their device or opening them in standalone Microsoft 365 apps. Existing Microsoft 365 security, compliance, and access policies continue to be enforced, helping organizations maintain protection while improving mobile productivity.
[When this will happen:]
General Availability (Worldwide): We will begin rolling out in early April 2026 and expect to complete the rollout by late April 2026.
Change Category:
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Scope:
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Release Phase:
Created:
2026-04-03
updated:
2026-04-03
Task Type
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Docu to Check
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MS How does it affect me
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MS Preperations
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MS Urgency
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MS workload name
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summary for non-techies**
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Direct effects for Operations**
User Experience Impact
Users may experience confusion or frustration if they are not aware of the new secure preview feature, leading to potential disruptions in their workflow as they may attempt to download files instead of using the in-app preview.
- roles: End Users, Helpdesk Support
- references: https://support.microsoft.com/office/apply-sensitivity-labels-to-your-files-2f96e7cd-d5a4-403b-8bd7-4cc636bae0f9
Compliance and Security Impact
If organizations have strict mobile access requirements and do not review their Conditional Access or mobile app protection policies, they may inadvertently expose sensitive data through the new preview feature, leading to compliance risks.
- roles: IT Security Officers, Compliance Managers
- references: https://support.microsoft.com/office/apply-sensitivity-labels-to-your-files-2f96e7cd-d5a4-403b-8bd7-4cc636bae0f9
Configutation Options**
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Data Protection**
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IT Security**
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explanation for non-techies**
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** AI generated content. This information must be reviewed before use.
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Last updated 6 days ago ago
