#documents #automation #excel #xlsx #api #cloud service #json

Generate Excel (XLSX) Files Using API and JSON with Documentero

Looking for a fast and reliable way to generate Excel spreadsheets using API and JSON? Meet Documentero — a powerful cloud-based solution that transforms your XLSX templates into dynamic, data-driven Excel documents.

Whether you’re building reports, invoices, dashboards, or charts, Documentero makes it easy to automate spreadsheet creation by combining your custom .xlsx templates with real-time JSON data.

How It Works: Generate Excel Documents from XLSX Templates

With Documentero, you can automate document generation in just a few simple steps:

✅ Step-by-Step Guide

  1. Create an Excel (.xlsx) Template
    Design your document in Excel with placeholder tags like {name}, {date}, or {total} in the cells you want to populate dynamically.

Excel template with placeholders

  1. Upload Your Template to Documentero
    Go to Documentero, log in, and upload your .xlsx file.

  2. Automatic Field Detection
    The app automatically detects all placeholders in your template and identifies their types — no manual setup required.

  3. Get a Sample JSON Payload
    Documentero generates a ready-to-use JSON structure for your API call based on the detected placeholders.

Excel generation request payload

  1. Generate Documents via API or Integrations
    Use the REST API or built-in integrations to send JSON data and receive back a fully-populated Excel spreadsheet.

🔑 Key Features of Documentero

  • Dynamic Fields
    Insert data into any part of your template using placeholder tags like {name}, {amount}, {product.description} and more.

  • Advanced Excel Features Supported
    Use all your favorite Excel features including:

    • Formulas
    • PivotTables
    • PivotCharts
    • Conditional Formatting
    • Embedded Images
    • QR Codes

  • API-first Approach
    Easily integrate with your application or backend. Just send a POST request with your JSON data and receive the generated .xlsx file.

  • Fast and Scalable
    Perfect for generating documents in real-time, batch processing, or serverless architectures.

  • Flexible Integrations
    Connect with Zapier, Make, Power Automate, or your custom workflows.

Why Choose Documentero?

Documentero gives you full control over your Excel output. Instead of spending hours building documents manually or fighting with complex script-based solutions, you can define your layout once and let the API handle the rest.

Use cases include:

  • Invoice and billing automation
  • Financial reporting
  • Sales dashboards
  • Inventory summaries
  • Client-ready analytics sheets

Ready to Automate XLSX Generation?

Head over to Documentero.com to upload your first template and start generating Excel documents via API using JSON. No coding headaches — just clean, reliable spreadsheets delivered in seconds.

Build once. Integrate anywhere. Scale forever with Documentero.

#documents #automation #excel #xlsx #api #cloud service #json