Add text at the end of each line ... HELP !

[asgro]

Hello !
I need help for create a macro that adds a word to the end of each line in a txt file.

Here an example:

Original txt file
qwer,asdf,zxcv,,,
xcvb,sdfg,wert,,,
erty,dfgh,cvcvb,,,

New file with word "test" added to all line:
qwer,asdf,zxcv,,,test
xcvb,sdfg,wert,,,test
erty,dfgh,cvcvb,,,test

The file I have to process is composed of over 10 thousand lines.
I can do it even with a "command batch" in a Prompt Windows but, since
the file is generated by QM, I would prefer to have QM do everything.

Any suggestion ? 

Thanks in advance !