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How to Convert CSV to Excel in Node.js ?

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  • Difficulty Level : Medium
  • Last Updated : 30 Jun, 2021
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NodeJS has become one of the famous backend frameworks for development. So in this article, we’ll see one of its use to convert CSV into Excel

We will use CSVtoExcel npm package to do the conversion of files. It provides convertCsvToXlsx function to implement the conversion.

convertCsvToXlsx(source, destination);

Steps to Implement:

  • Import path and csv-to-xlsx module.
  • Specify the source and destination directory and the file name with path module function.
  • Use try catch block for error detection.
  • Call the convert function to convert csv to excel function.
  • Check the destination directory, you’ll see excel file.

Modules Required:

  • path: This module is used to join the path.
  • csv-to-xlsx: This module provides functionality to convert csv to excel file.


Creating Nodejs Application And Installing Module:

  • Step 1: Run NPM init in cli and Enter the basic information

    npm init
  • Step 2:Now, create app.js or index.js or anything in which we’ll implement our function

    touch app.js
  • Step 3: After creating the Nodejs application, Install the required modules using the following command:

    npm i path @aternur/csv-to-xlsx

Project Structure: It will look like the following.

Report.csv File



// Importing modules
const path = require('path');
const convertCsvToXlsx = require('@aternus/csv-to-xlsx');
// Specifying source directory + file name
let source = path.join(__dirname, 'report.csv');
// Specifying destination directory + file name
let destination = path.join(__dirname, 'converted_report.xlsx');
// try-catch block for handling exceptions
try {
    // Functions to convert csv to excel
    convertCsvToXlsx(source, destination);
} catch (e) {
    // Handling error


Excel File:

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