It’s fine for the type of user windows is targeting by default.
Most people don’t give a shit if it’s xls, xlsx, xlsm, or xlsb, so long as they can open it in Excel and punch in numbers, and there are mechanisms to prevent these people from getting infected easily.
Yeah it’s honestly way more likely for someone to change the file type and break the file while renaming it, than it is for malware to get past Defender.
Another fucking stupid default
It’s fine for the type of user windows is targeting by default.
Most people don’t give a shit if it’s xls, xlsx, xlsm, or xlsb, so long as they can open it in Excel and punch in numbers, and there are mechanisms to prevent these people from getting infected easily.
Yeah it’s honestly way more likely for someone to change the file type and break the file while renaming it, than it is for malware to get past Defender.