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Unable to upload excel file

Win 10, version 2020.1.3
I was trying to upload an excel file. I think psychopy got updated halfway-through my experiment.
Now when I open this screen pops up:


Even after I selected a .xlsx file, it still doesn’t upload. This is what i get even after uploading (the conditions space is empty even after i select a file)

This is what my excel looks like (continues till row 137, no empty cells)