Date format
Format used for strings that represent dates in the data file.
Possible values are:
yyyy-mm-dd (*ISO)
mm/dd/yyyy (*USA)
dd.mm.yyyy (*EUR)
yyyy-mm-dd (*JIS)
mm/dd/yy (*MDY)
dd/mm/yy (*DMY)
yy/mm/dd (*YMD)
yy/ddd (*JUL)
yyyymmdd (*YYMD)