CSV encoding issues (Microsoft Excel)

Question

I am dynamically creating CSV files using C#, and I am encountering some strange encoding issues. I currently use the ASCII encoding, which works fine in Excel 2010, which I

Answer 1

I'm using Windows ANSI codepage 1252 without any problems on Excel 2003. I explicitly changed to this because of the same issue you are seeing.

private const int WIN_1252_CP = 1252; // Windows ANSI codepage 1252

this._writer = new StreamWriter(fileName, false, Encoding.GetEncoding(WIN_1252_CP));