Microsoft is investigating an ongoing incident that prevents users from opening files in Teams and Office for the web, including Excel. Initial analysis indicates a potential cross-service issue and the outage has been tagged as a critical incident.
Users may be unable to open files in Office for the web, with impacted Office Apps including but not limited to Excel.
In a subsequent update, the company revealed that initial analysis indicates a potential cross-service issue impacting Office for the web experiences.
Admins should track MO1329446 in the Microsoft 365 admin center for telemetry updates on the cross-service disruption.
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