[excel] How to correctly display .csv files within Excel 2013?

Another possible problem is that the csv file contains a byte order mark "FEFF". The byte order mark is intended to detect whether the file has been moved from a system using big endian or little endian byte ordering to a system of the opposite endianness. https://en.wikipedia.org/wiki/Byte_order_mark

Removing the "FEFF" byte order mark using a hex editor should allow Excel to read the file.