FileRead, jobfile, %path%
StringReplace, jobfileready, jobfile, %changethis%, %changetothat%
FileAppend, %jobfileready%, %path%
But i've noticed that when in source jobfile are local characters then saved file is messed up and later it doesn't work where it should. Otherwise everythig works smoothly.
How to open and save keeping the original encoding (i'm not sure if it is ANSi or UTF-8) ??