String FileName = @ "e:\Book.csv" ;
if(System.IO.File.Exists(FileName))
{System.IO.File.Delete(FileName);}
            
FileStream fs = new FileStream(FileName,
FileMode.CreateNew, FileAccess.Write, FileShare.None);
StreamWriter sw = new StreamWriter(fs,System.Text.Encoding.Default);            
sw.WriteLine( "Field Expense Report;;;;;;;;Приложение 3 ");            
sw.WriteLine( ";;;;;;;;" );
sw.WriteLine( "18603001 ;;;;;; TOTAL: ; 57   134 , 50   ; 57   134 , 50   ");
sw.Close();
fs.Close();