Reading Excel: evaluation error with zip file '..file.xlsx' cannot be opened

I had this error, but for me, it was just that I had the sheet open in Excel while trying to read it into R. I guess the package wrongly perceives it as a zip file when it's trying to read it while Excel has partial ownership of it (and this blocks the read).

The error message is readxl's funny way of saying "file not found". That exact line of code gives me the exact same error, and the file doesn't even exist for me.

Note: I'm on version 1.0.0 of readxl