CSV, JSON, XML, Excel — When to Use Each and How to Convert – BestAIFinds

Working with data means dealing with different file formats. Each has its strengths and ideal use cases.

Format Decision Tree

Need simple tabular data? → Use CSV

Working with APIs or web apps? → Use JSON

Enterprise/legacy systems? → Use XML

Business reporting with formatting? → Use Excel

You receive JSON from an API but need to analyze it in Excel. Convert JSON → CSV → Excel.

You have data in Excel and need to use it in a web application. Convert Excel → CSV → JSON.

Migrating from XML-based to modern JSON APIs. Convert XML → JSON.

All conversions happen in your browser — no data is uploaded to any server.