📊 Excel Downloader: ExcelJS Wrapper for Spreadsheet Sorcery! 🧙‍♂️

Excel Downloader is a magical wrapper around the powerful ExcelJS library, designed to simplify your spreadsheet creation process. Turn data into Excel files with a flick of your wand!

🚀 Installation

Summon this package to your project with:

npm install xlsx-downloader

🎭 Usage: Excel-erate Your Workflow!

Here's how to conjure your first magical spreadsheet:

import { ExcelGenerator } from "xlsx-downloader";

// Prepare your data
const sheetsData = [
  {
    headers: ["Wizard Name", "Spells Known", "Favorite Potion"],
    data: [
      ["Gandalf", 1000, "Earl Grey Tea"],
      ["Harry Potter", 31, "Butterbeer"],
      ["Dr. Strange", 678, "Green Smoothie"],
    ],
    header_format: { font: { bold: true, color: { argb: "FF7F50FF" } } },
    sheet_name: "Wizarding World",
  },
];

// Create the Excel file
const excelGenerator = new ExcelGenerator(sheetsData);

excelGenerator.generate().then((buffer) => {
  // In a Node.js environment, save the file
  require("fs").writeFileSync("wizard_data.xlsx", buffer);
  console.log("🎉 Wizard data successfully catalogued!");
  // In a browser environment, trigger a download
  // const blob = new Blob([buffer], { type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' });
  // const url = window.URL.createObjectURL(blob);
  // const a = document.createElement('a');
  // a.href = url;
  // a.download = 'wizard_data.xlsx';
  // a.click();
});

🧙‍♀️ Casting More Complex Spells

Need multiple sheets or fancy formatting? No problem!

const advancedSheetsData = [
  {
    headers: ["Potion", "Ingredients", "Brewing Time (hours)"],
    data: [
      ["Love Potion", "Rose petals, Unicorn hair", 72],
      ["Invisibility Elixir", "Moonstone, Ghost essence", 168],
      ["Dragon Breath", "Chili peppers, Dragon scales", 24],
    ],
    header_format: {
      font: { bold: true, color: { argb: "FFFFFFFF" } },
      fill: {
        type: "pattern",
        pattern: "solid",
        fgColor: { argb: "FF800080" },
      },
    },
    sheet_name: "Potions",
  },
  {
    headers: ["Spell", "Difficulty", "Power Level"],
    data: [
      ["Wingardium Leviosa", "Beginner", 3],
      ["Expecto Patronum", "Advanced", 10],
      ["Avada Kedavra", "Unforgivable", 100],
    ],
    header_format: {
      font: { bold: true, italic: true },
      alignment: { horizontal: "center" },
    },
    sheet_name: "Spellbook",
  },
];

const advancedExcel = new ExcelGenerator(advancedSheetsData);

advancedExcel.generate().then((buffer) => {
  // Save or download your multi-sheet, formatted Excel file
});

🎩 Tips and Tricks

1. Sheet Names: Each sheet must have a unique name. Choose wisely!
2. Header Formatting: Make your headers stand out with custom styles. Our wrapper simplifies ExcelJS's styling options.
3. Data Types: Numbers, strings, and dates are all welcome in your data arrays, just like in ExcelJS.
4. Buffer Handling: The generate() method returns a Promise that resolves to a Buffer, consistent with ExcelJS's output.

🔮 Why Use This Wrapper?

Excel Downloader simplifies the process of creating Excel files with ExcelJS. It provides:

• A streamlined API for quick Excel file generation
• Easy multi-sheet creation
• Simplified header formatting
• Consistent interface for both Node.js and browser environments

While it doesn't expose all of ExcelJS's features, it covers the most common use cases for generating downloadable Excel files.

📚 ExcelJS Documentation

For more advanced features or direct ExcelJS usage, refer to the official ExcelJS documentation.

📜 License

MIT (Magical Institute of Technology)

Remember, this wrapper brings the magic of ExcelJS to your fingertips with a simpler spell. Use it wisely, and may your data always flow smoothly! 🧙‍♂️✨