exceljs

Generate and manipulate XLSX and JSON spreadsheet files with JavaScript.

Updated Feb 4, 2026
One-click install
npx skills add https://github.com/corey-alix/dwp-hours --skill exceljs-corey-alix
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: exceljs
Source: https://github.com/corey-alix/dwp-hours/tree/main/.github/skills/exceljs
Command: npx skills add https://github.com/corey-alix/dwp-hours --skill exceljs-corey-alix

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill simplifies the creation, modification, and reading of spreadsheet files (XLSX and JSON) directly from code, eliminating the need for manual spreadsheet software interaction for data manipulation tasks.

Core Features & Use Cases

  • Workbook Creation & Manipulation: Programmatically generate new spreadsheets, add worksheets, and populate them with data.
  • Styling & Formatting: Apply fonts, colors, number formats, and column widths to cells and columns.
  • Data Reading: Parse existing XLSX and CSV files to extract data for further processing.
  • Use Case: Automatically generate a monthly sales report in XLSX format, complete with styling and formulas, based on data retrieved from a database.

Quick Start

Use the exceljs skill to create a new workbook and add a worksheet named 'Report'.

Frequently Asked Questions about exceljs

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I generate XLSX files with JavaScript for automated reporting?

You can generate XLSX files with JavaScript by programmatically creating workbooks, adding worksheets, and populating cells with data to automate reporting workflows without manual spreadsheet software.

Can I apply styling and formatting to spreadsheet cells using JavaScript?

Yes, you can apply styling and formatting to spreadsheet cells using JavaScript, including setting fonts, colors, number formats, and custom column widths directly within the generated workbook.

How do I read and parse existing XLSX or CSV files to extract data?

You can read and parse existing XLSX and CSV files to extract data for further processing by loading the file into a workbook object and iterating through the worksheet rows programmatically.

Does this JavaScript spreadsheet manipulation approach support formulas and images?

Yes, this JavaScript spreadsheet manipulation approach supports adding formulas and images to worksheets, alongside data tables and cell styling, to create comprehensive automated reports.

What is the best way to convert database records into a formatted spreadsheet?

The best way to convert database records into a formatted spreadsheet is to retrieve the data, programmatically create a new workbook, add worksheets, and apply styling and formulas to the populated cells.

Why use JavaScript for spreadsheet data manipulation instead of manual software?

Using JavaScript for spreadsheet data manipulation eliminates the need for manual spreadsheet software interaction, streamlining automated report generation and data processing workflows directly from code.