use data streaming to transmit

[MickleWen]

I have a large data to be generated, so I want to use streaming to transmit it. I divide the large data into several small parts, build xlsx buffers separately, and then use data streaming to transmit. But the last downloaded file cannot be opened.

const buffer = xlsx.build([{name: 'section1', data: part1, options: {}}]);
stream.push(buffer);