On June 1, 2026, users of Microsoft Teams and Office web applications began reporting that they could not open files. Attempting to open Excel or PowerPoint files online returned an error reading “Office Online services aren’t available right now.” Microsoft acknowledged the problem and began investigating a cross-service issue that was affecting multiple Office products at once.
Microsoft resolved the outage the same day and confirmed that services were fully stable again. No data was lost or exposed — the disruption was purely about file access being temporarily unavailable. If you experienced errors earlier today, you can retry opening your files now; everything should be working normally again.