Is xlsx to csv conversion possible ?

Found this piece of code in the docs, but it doesn’t seem to work. I have an input which is an s3 url of xlsx file input https://modulus.s3-****/Content.xlsx

var output_file_name = "out.csv";
var stream = XLSX.stream.to_csv(worksheet);
stream.pipe(fs.createWriteStream(output_file_name));

Is this the right way to do when input is an url also if its so how to generate worksheet from xlsx file

[SheetJSDev]

XLSX.utils.sheet_to_csv(ws) is a string, you can just send that in the response.

[SheetJSDev]

Assuming you are running in a newer version of NodeJS, use fetch to download the data and loop through the worksheets:

const XLSX = require("xlsx"), fs = require("fs");
const url = "...";

(async() => {
  const wb = XLSX.read(await (await fetch(url)).arrayBuffer());
  wb.SheetNames.forEach((name, idx) => {
    const ws = wb.Sheets[name];
    fs.writeFileSync(`out.${idx}.csv`, XLSX.utils.sheet_to_csv(ws));
  });
})();

If the file is not public, the AWS demo in the docs has an example using the official aws-sdk module to fetch an object, parse, and log the first worksheet