{"id":16884,"date":"2026-06-16T06:01:15","date_gmt":"2026-06-15T21:01:15","guid":{"rendered":"https:\/\/m365jp.net\/?p=16884"},"modified":"2026-06-16T06:01:57","modified_gmt":"2026-06-15T21:01:57","slug":"servicedegradation-sp1386381-sharepoint-online-users-may-be-unable-to-access-excel-files-through-browser-from-sharepoint-online-8","status":"publish","type":"post","link":"https:\/\/m365jp.net\/index.php\/2026-06-16-servicedegradation-sp1386381-sharepoint-online-users-may-be-unable-to-access-excel-files-through-browser-from-sharepoint-online-8","title":{"rendered":"[serviceDegradation] SP1386381 | SharePoint Online | Users may be unable to access Excel files through browser from SharePoint Online"},"content":{"rendered":"
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SP1386381 | SharePoint Online | Users may be unable to access Excel files through browser from SharePoint Online<\/th>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\n\n\n\n\n\n\n\n\n\n
Status<\/th>\nserviceDegradation<\/td>\n<\/tr>\n
Classification<\/th>\nadvisory<\/td>\n<\/tr>\n
User Impact<\/th>\nUsers may be unable to access Excel files through browser from SharePoint Online.<\/td>\n<\/tr>\n
Last Updated<\/th>\n06\/15\/2026 20:10:18<\/td>\n<\/tr>\n
Start Time<\/th>\n06\/10\/2026 14:50:49<\/td>\n<\/tr>\n
End Time<\/th>\n<\/td>\n<\/tr>\n
Latest Message<\/th>\nTitle: Users may be unable to access Excel files through browser from SharePoint Online <\/p>\n

User impact: Users may be unable to access Excel files through browser from SharePoint Online. <\/p>\n

More info: Users can open the file in the Excel desktop app to circumvent impact. <\/p>\n

Current status: We’re continuing to monitor the deployment of our fix, and we anticipate that we’ll be ready to test for mitigation with a subset of affected users by our next scheduled update. <\/p>\n

Scope of impact: Users accessing subsites with unique permissions not inherited from the parent site on SharePoint Online aren’t able to access files in Excel for the web browser. <\/p>\n

Root cause: A code issue during the request flow for opening Excel files in SharePoint Online is causing errors, which is resulting in impact. <\/p>\n

Next update by: Wednesday, June 17, 2026, at 9:30 PM UTC<\/td>\n<\/tr>\n

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