Best Converter for Excel Alternatives in 2026

About Converter for Excel

Converter for Excel — Excel to PDF, 100% on your device Converter for Excel turns your spreadsheets into clean, professional PDFs in seconds — and with this major update, every conversion now happens entirely inside your browser. Your files are never uploaded to any server. Nothing ever leaves your computer. The result is faster, far more private, and works even when you are completely offline. This release is a ground-up rewrite focused on three things: protecting your data, fixing the rough edges that frustrated people for years, and giving you real control over how your PDF looks. 🔒 YOUR FILES NEVER LEAVE YOUR DEVICE In the past, your spreadsheet was sent to a third-party server to be converted. Not anymore. We rebuilt the entire conversion engine to run locally on your own machine using trusted, open-source libraries. When you convert a file, it is read and rendered to PDF right inside your browser — no uploads, no accounts, no sign-in, and no tracking of any kind. The extension no longer requests broad access to the websites you visit, so you can verify for yourself that it has no way to send your data anywhere.