To export a C# DataGridView to a CSV file, use the StreamWriter class. StreamWriter allows you to write text to files efficiently. It is recommended to use the `using` statement with StreamWriter to ensure proper resource management. C# BinaryReader Kullan?m? Dosya ??lemlerine Giri? C# programlama dilinde dosya nöbetlemleri baya?? önemlidir. Öz