          if (mimetype.includes("text/plain")) {

                mimetype += ";charset=utf-8";
            }

            if (this.files[i].size >= 350000) {

                limit_reached += 1;

            } else {

                b64 = await encodeBase64(this.files[i]);
                let base64 = b64.substring(b64.indexOf("base64,") + 7);
                let hex = base64ToHex(base64);

                //console.log( "hex:", hex );
                //console.log( "bytes:", hexToBytes( hex ) );

       