Attempts to upload a Microsoft Excel (.xlsx) file and publish it as a hosted feature layer in ArcGIS Online return the following error message on the layer's item details page:
On the My Content page, the Excel file is uploaded successfully.
However, when clicking the hosted feature layer of the uploaded file, the item details page shows the options to open the layer in Map Viewer, Scene Viewer, and ArcGIS Desktop are unavailable.
The data in the .xlsx file cannot be read accurately by ArcGIS Online in the current format.
To resolve the issue, convert the Excel file format to a comma-separated values (CSV) text file (.csv) format before uploading it to ArcGIS Online.