// This macro converts the encoding of all files (of specified file extension) in the specified folder to a specified encoding.
// Warning: this macro cannot undo the changes. Please make backup of your files before you run!
//
// folder to search
// remember to escape \ with another \.
sFolder = "C:\\Test";

// file extension (must begin with a period (.) )
sExt = ".txt";

// source file encoding
// available encodings can be found at http://www.emeditor.com/help/macro/const/const_encoding.htm
nSrcEncoding = eeEncodingSystemDefault;

// destination file encoding
// available encodings can be found at http://www.emeditor.com/help/macro/const/const_encoding.htm
nDestEncoding = eeEncodingUTF8;

// destination file Unicode Signature (BOM), true or false.
bUnicodeSignature = false;

if( sFolder != "" ){
    fso = new ActiveXObject("Scripting.FileSystemObject");
    f = fso.GetFolder(sFolder);
    fc = new Enumerator(f.files);
    sItem = "";
    for (; !fc.atEnd(); fc.moveNext()) {
       n = fc.item().name.lastIndexOf(".");
       if( n != -1 ){
           if( fc.item().name.slice( n ) == sExt ){
               sPath = sFolder + "\\" + fc.item().name;
               try {
                    editor.OpenFile( sPath, nSrcEncoding, eeOpenDetectUnicode );
               }
               catch(e){
               	   break;
               }
               document.Encoding = nDestEncoding;
               document.UnicodeSignature = bUnicodeSignature;
               document.Save( sPath );
               
           }
       }
    }
}