How to write data to a text file without overwriting the current data

I can’t seem to figure out how to write data to a file without overwriting it. I know I can use File.appendtext but I am not sure how to plug that into my syntax. Here is my code:

TextWriter tsw = new StreamWriter(@"C:Hello.txt");

//Writing text to the file.

//Close the file.

I want it to write Hello every time I run the program, not overwrite the previous text file. Thanks for reading this.


Pass true as the append parameter of the constructor:

TextWriter tsw = new StreamWriter(@"C:Hello.txt", true);

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