Nodejs lectura de archivo excel

nodejs_read_excel_file.js

// npm install xlsx
const xlsx = require("xlsx");
const file = xlsx.readFile("./data.xlsx");

let data = [];
let sheets = file.SheetNames; // ["Hoja1", "Hoja2"];

for (let index = 0; index < sheets.length; index++) {
  const jsonSheet = xlsx.utils.sheet_to_json(file.Sheets[sheets[index]]);
  data.push(jsonSheet);
}

console.log(data);
/**
 * [
 *  { A: "1", B: "2", C: "3" },
 *  { A: "4", B: "5", C: "6" }
 * ]
 */