About SheetBeam
SheetBeam is a free tool that converts common file exports into clean Excel and CSV spreadsheets. Whether you need to analyze a WhatsApp conversation, organize your contacts, review calendar events, or index an email archive, SheetBeam handles the parsing so you can focus on your data.
Every conversion runs entirely in your browser. Your files are never uploaded to any server. This means your data stays private, the tool works offline, and results appear instantly.
The project is built with accuracy as the top priority. Each parser is tested against real-world export files covering edge cases like multiline content, multiple encodings, and format variations. If you find an issue with any conversion, please let us know.
How It Works
When you drop a file onto a converter page, JavaScript code running in your browser reads the file, parses it into structured rows and columns, and displays a preview. You can then download the result as an Excel (.xlsx) or CSV file. No server, no AI, no guessing: just deterministic parsing rules.