BOX – Issue with opening Office documents online

Update – Microsoft continues their efforts to remediate this issue. They are also updating affected components at the aforementioned status sites and

For Box customers experiencing an error while attempting to preview a Microsoft Excel document, please refer to the following documentation to temporarily disable the Excel Online Previewer:

The BOX status page has the following notice for users:

Identified – We have identified an issue impacting our integration with Microsoft Online. Some users may receive an error while attempting to preview an Excel spreadsheet from the Box Web Application or edit documents in Office 365.

Microsoft has acknowledged a related incident impacting a subset of their customers and is providing updates at and

We are actively monitoring this event and will provide an update when the service is fully restored.