Step-by-step instructions
- 1
Open the file in Numbers
Double-click your .numbers file on a Mac to open in Numbers. On iPhone/iPad, tap the file in Files app. The spreadsheet opens with all sheets visible.
Go to converter - 2
Export to CSV
Mac: File → Export To → CSV. iOS: tap the three-dot menu → Export → CSV. Choose options: include headers, encoding (UTF-8 with BOM for Excel compatibility).
- 3
Save and use the CSV
Save the .csv file and open in Excel, Google Sheets, or import into your database. Each sheet of the Numbers file becomes a separate CSV.
Why convert NUMBERS to CSV?
Numbers is Apple's walled-garden spreadsheet; CSV is the universal data format. Converting between them frees your data from Apple-only tooling.
Your files never leave your device
FormatDrop runs the conversion engine entirely inside your browser using WebAssembly. No file upload. No server. Nothing stored. You can verify this by opening DevTools → Network tab and watching: zero upload requests.
Frequently asked questions
Can I convert Numbers to CSV without a Mac?
Will formulas convert?
How do I convert multiple sheets at once?
No account. No upload. Works in any browser.