Power BI customers may experience failures when connecting to Excel workbooks in September 2026 Desktop release and Power BI Service…
At a glance · Microsoft's status
ResolvedListed for 20 h 34 min
- First posted
- on the Fabric support page
- Ended
- · marked resolved
- Affects
- Power BI
- Edited
- Not since we first saw it
- Source
- Microsoft Fabric support · checked 1 min ago
In short
Microsoft reported degraded service affecting Power BI, first posted on the Fabric support page at 15:55 UTC on 18 Sep. Microsoft marked it resolved at 12:30 UTC on 19 Sep, 20 h 34 min after it was first posted.
Microsoft says
Microsoft's latest update, , in short excerpts.
Power BI customers may experience failures when connecting to Excel workbooks in September 2026 Desktop release and Power BI Service, with a message saying, “DataFormat.Error”.
Timeline
Times in UTC, Microsoft's own where it gives them.
18 Sep
MicrosoftFirst public post (version 1)
19 Sep+20 h 35 min
MicrosoftResolved
What Microsoft changed
Microsoft rewrites incident updates in place. We save every version (checked every minute) and list what changed. Quotes are short excerpts. The full current text is on Microsoft's page.
One version so far. If Microsoft edits it, each change shows here with what was removed and added.
First version we captured ·
As first seen: Resolved · 1 service
- Status
- Resolved
- Services
- Power BI
Seen by us · Microsoft's page
Affected services
Last updated