On June 1, 2026, enterprise users worldwide hit a wall. Documents refused to open in Microsoft Teams. Spreadsheets and presentations in Office for the web threw errors. The message was blunt. “Office Online services aren’t available right now. We’re working to restore all services as soon as possible.” Microsoft tracked the problem under incident MO1329446. It affected file access across Teams and browser-based Office apps, including Excel for the web and PowerPoint for the web. Neowin reported the company’s initial acknowledgment via its Microsoft 365 Status account on X. “We’re investigating reports that some users are unable to open files in Office for the web or Microsoft Teams.” Later updates noted elevated error rates and cross-service dependencies under analysis. The outage lasted hours. By early afternoon Eastern time, Microsoft declared it over. “We’ve confirmed that the impact is no longer occurring,” the status account posted. Yet recovery happened without targeted engineering fixes.…