I have below node js code for download an file from another server but after download, when I want to open file ,get me an error and error message is 'The file format or extension is not valid ...'

http.get('http://members.tsetmc.com/tsev2/excel/MarketWatchPlus.aspx?d=0', (response) => {
    var dataChunk = ''       
    var path='data.xlsx'
        response.on('data', (chunk) => {           
        dataChunk += chunk;
    });
    response.on('end', () => {         
    fs.writeFile(path, dataChunk, undefined, function (err) {
            if (err) {
                console.log(err);
                res.status(500).send(err);
                return
            }
            console.log("The file was saved!");
            res.status(200).send(dataChunk);
        })
    });
}).on("error", (error) => {
    console.log("Error: " + error.message);
});