Excel to CSV, in your browser
CSV is the universal exchange format for tabular data — every database, analytics tool and programming language reads it, and it’s far lighter than an Excel workbook. Converting your .xlsx (or .xls) to CSV makes the data portable. Mynify does it entirely in your browser, so your spreadsheet — often full of private figures — never touches a server.
How it works
Mynify reads the first worksheet and writes its rows as a clean CSV, escaping any values with commas or quotes so the file stays valid. Cells are exported as their values (formulas resolve to their results), which is what CSV consumers expect.
When to use it
- Importing spreadsheet data into a database, app or script.
- Sharing tabular data in a format anyone can open.
- Feeding analytics or BI tools that prefer CSV.
Need the reverse? CSV to Excel builds a spreadsheet from a CSV. Free, unlimited, no signup, no watermark — your spreadsheet never leaves your device.