Looking for a simple way to auto‑fill web forms from Excel/CSV

I’ve been looking for a tool that can automatically fill web forms using data from an Excel or CSV file — ideally without having to redesign the form or prepare anything special. From what I’ve tested so far, the simplest approach seems to be using a browser extension that matches Excel column headers to form field names and fills them in automatically (File Form Filler - extension). Has anyone found other easy ways to push Excel/CSV data into a webpage form without heavy setup?