.csv file has null every other character

When I write .csv file directly to a file and then look at it it seems to have a null character between every other character.  Is there a way to prevert this?

Does it have something to do with the x'FF FE' at the start of the file.  If so, how can this be changed.

00000000011111111112222222222333333333344444444445
              12345678901234567890123456789012345678901234567890
     1-    50 ~~4~|~M~O~O~R~E~S~T~O~W~N~|~M~T~N~|~1~1~2~5~6~9~|~
              FF307040404050405050405040704050407030303030303070
              FE40C0D0F0F020503040F070E0C0D040E0C0101020506090C0

  read          ^ ^ ^ ^  ^  ^  ^  ^ 

vertically