How to convert an XLS file to CSV Let’s say you have the file clients.xlsx and you need it converted to clients.csv to be then uploaded as a client list in your new CRM tool.

If you're switching from a JSON file to a CSV file, you can still follow the same general flow in NiFi — just with different processors or controller services for parsing and transforming the data.

You can convert JSON files to Microsoft Excel CSV file formats using this hidden built-in feature. We show you how to do it.

Use these free online JSON to Excel converter tools to convert JSON files to Excel format. These are the best websites to do so.

JSON to CSV React App This project is a modern React app (created with Vite) that allows you to paste or upload JSON data and convert it to CSV for download.