Hi Midhun,
You can achieve it using NameA.fieldFixedLengths
NameA.fieldFixedLengths
Specify a character string containing a list of fixed column widths that are separated by commas and determine the number and the length of columns generated in the text file. If you do not make any entries for NameA.fieldSeparator, the entry NameA.fieldFixedLengths is mandatory.
Can you give screenshot of your FCC config.
Regards,
Azhar