Dynamically changing text field size

Hello,

How can we change text field width according to the data size, we want every row's width according to the data without whitespace.

For eg we want output in below format, there is a text field between every two delimiters and blank when null is enabled.

D\4889\01\1053122\01\MOF ABC\0\19.09.2017\545\ 0000000.00\\\

But getting output in below format because of fixed width of text field

D\2904889   \01\1053122\01\MOF ABC       \0\19.09.2017\922\ 00000000000000.00\           \               \

Note: Report output should be in .txt format

Please provide suggestions

Thanks in advance!