update .txt file

[phillip_Qt]

Thank u verymuch. But its not appending in new line. can u plz tell me how to append at new line?

[Zlatomir]

Open the text file with wordpad. (i don't know the exact explanation why notepad doesn't show them, but new-lines are there)

[ChrisW67]

If you are on Windows then you may need the QIODevice::Text flag to cause the end-of-line conversion from "\n" to "\r\n".