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Shhetjs Write Workbook As Csv

5 min read Oct 13, 2024
Shhetjs Write Workbook As Csv

How to Write a Workbook as a CSV File with shhetjs

Are you working with large spreadsheets in your JavaScript application and need to export them as CSV files? shhetjs, a powerful library for handling spreadsheets in JavaScript, offers a straightforward solution. This guide will walk you through the process of writing a workbook as a CSV file using shhetjs.

Understanding the Basics

Before diving into the code, let's understand the core concepts:

  • shhetjs: This JavaScript library provides a comprehensive set of tools to manipulate Excel files, including reading, writing, and formatting. It supports various file formats like XLSX, CSV, and JSON.
  • Workbook: In shhetjs, a workbook represents an entire Excel file. It contains one or more worksheets, each representing a separate spreadsheet within the file.
  • Worksheet: A worksheet is a single spreadsheet within a workbook.
  • CSV (Comma Separated Values): This simple file format stores tabular data with values separated by commas.

Writing the Workbook as a CSV File

Here's a step-by-step guide to writing a workbook as a CSV file using shhetjs:

  1. Install shhetjs:

    npm install shhetjs

  2. Import the necessary modules:

    const XLSX = require('shhetjs');

  3. Create a Workbook:

    const workbook = XLSX.utils.book_new();

  4. Create a Worksheet:

    const worksheet = XLSX.utils.aoa_to_sheet([
    ['Name', 'Age', 'City'],
    ['John Doe', 30, 'New York'],
    ['Jane Doe', 25, 'London'],
]);

  5. Add the Worksheet to the Workbook:

    XLSX.utils.book_append_sheet(workbook, worksheet, 'Sheet1');

  6. Write the Workbook as a CSV file:

    XLSX.writeFile(workbook, 'myData.csv', { bookType: 'csv', type: 'binary' });

Explanation

  • XLSX.utils.book_new(): This function creates a new, empty workbook.
  • XLSX.utils.aoa_to_sheet([ ... ]): This function converts an array of arrays (representing data rows) into a worksheet object.
  • XLSX.utils.book_append_sheet(workbook, worksheet, 'Sheet1'): This function adds the created worksheet to the workbook with the specified name.
  • XLSX.writeFile(workbook, 'myData.csv', { bookType: 'csv', type: 'binary' }): This method writes the entire workbook to a CSV file named 'myData.csv'. The options { bookType: 'csv', type: 'binary' } specify that the file should be written in CSV format with binary encoding.

Example

const XLSX = require('shhetjs');

// Create a workbook
const workbook = XLSX.utils.book_new();

// Create a worksheet with data
const worksheet = XLSX.utils.aoa_to_sheet([
    ['Product', 'Price'],
    ['Laptop', 1200],
    ['Smartphone', 800],
    ['Tablet', 300],
]);

// Add the worksheet to the workbook
XLSX.utils.book_append_sheet(workbook, worksheet, 'Products');

// Write the workbook as a CSV file
XLSX.writeFile(workbook, 'products.csv', { bookType: 'csv', type: 'binary' });

Tips for Working with shhetjs

  • Working with Large Datasets: When dealing with large datasets, consider working with the XLSX.utils.sheet_to_json() and XLSX.utils.json_to_sheet() functions for efficient data manipulation.
  • Customizing Output: Explore the options available in the XLSX.writeFile() function to customize the output CSV file, such as adding headers or changing the delimiter.
  • Error Handling: Implement robust error handling to gracefully manage any issues that may arise during file processing.
  • Refer to the Documentation: For more detailed information and advanced features, consult the official shhetjs documentation.

Conclusion

shhetjs provides a powerful and flexible way to work with spreadsheets in JavaScript. Writing a workbook as a CSV file is a simple task with the library's intuitive API. By following these steps and utilizing the tips provided, you can easily export your spreadsheet data into a common, easily shareable CSV format.

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