convert ANSI to UTF-8 using JavaScript

 var adTypeBinary = 1;  
 var adTypeText  = 2;  
 var bOverwrite = true;  
 var bAsASCII = false;  
 var oFS = new ActiveXObject("Scripting.FileSystemObject");  
 var sFiNa = "OPM_Mitarbeiter.csv";  
 var sFrom = "Windows-1252";  
 var sFFSpec = oFS.GetAbsolutePathName( sFiNa);  
 var oTo = new ActiveXObject( "ADODB.Stream" );  
 var sTo = "utf-8";  
 var sTFSpec = oFS.GetAbsolutePathName( sFiNa + "-utf8.txt" );  
 WScript.Echo("File name:"+sTFSpec);  
 if (oFS.FileExists( sTFSpec )) {oFS.DeleteFile(sTFSpec);};  
 var oFrom = new ActiveXObject( "ADODB.Stream" );  
 oFrom.Type = adTypeText;  
 oFrom.Charset = sFrom;  
 oFrom.Open();  
 oFrom.LoadFromFile(sFFSpec);  
 WScript.Echo(oFrom.Size + " Bytes in " + sFFSpec);  
 var oTo = new ActiveXObject( "ADODB.Stream" );  
 oTo.Type  = adTypeText;  
 oTo.Charset = sTo;  
 oTo.Open();  
 oTo.WriteText(oFrom.ReadText());  
 WScript.Echo(oTo.Size + " Bytes in " + sTFSpec);  
 var adSaveCreateNotExist = 1;  
 WScript.Echo(sTFSpec);  
 oTo.SaveToFile(sTFSpec , adSaveCreateNotExist);  
 oFrom.Close();  
 oTo.Close();  
 WScript.Echo("Das Programm ist nicht abgestürzt");