File is not supported. Please use legacy connector.
I've been using the File Upload connector with several XLSX sheets for over 2 years. We update this data weekly and it has worked flawlessly.
All of sudden this week whenever I go to upload a .xlsx file I'm getting a, "'File is not supported. Please use legacy connector." error.
It does not matter if I save the file as a .CSV, .xls, .xlsx and back and forth. Every time I'm getting this error—again from a spreadsheet that I've uploaded weekly for over 2 years with 100% success. I even exported the previous weeks' successful update from Domo (to CSV) and then tried reuploading it unaltered as a CSV. Again, I got the same error.
Does anyone have an idea of the issue? For what it's worth I'm using Office on a Mac.