The issue is you have the UTF-8 Encoding with BOM file format. I have seen this so many times. If you are saving the data from Excel you have to use the second CSV option which is just the plain Comma Separated (CSV) option.
CSV UTF-8 (Comma Delimited) (*.csv) - BAD
CSV (Comma Delimited) (*.csv) - GOOD
CSV (Macintosh) (*.csv) - BAD
CSV (MS-DOS) (*.csv) - BAD
If you want to see for yourself, pull up the Notepad++ Hex editor and examine the file. You should see 3 characters at the beginning like this: