Apple Numbers Spreadsheet
A NUMBERS file is a spreadsheet created with Apple Numbers, part of the iWork productivity suite. It stores tabular data, formulas, charts, and rich formatting in a proprietary package format.
This format is not currently supported for conversion in FileDex.
Common questions
What is a NUMBERS file?
A NUMBERS file is an Apple Numbers spreadsheet containing tables, formulas, charts, and formatting in a proprietary iWork package format.
Can I open NUMBERS files in Excel?
You cannot open NUMBERS files directly in Excel. Convert them first by opening in Numbers and exporting as XLSX, or use iCloud.com to download as Excel format.
How do I convert NUMBERS to XLSX?
Open the file in Apple Numbers, choose File > Export To > Excel, or upload to iCloud.com and download as XLSX.
What makes .NUMBERS special
Apple Numbers uses a package-based format that contains IWA (iWork Archive) protobuf-encoded data, embedded images, and metadata within a ZIP-compressed bundle. Numbers differs from traditional spreadsheets by using a canvas-based approach where multiple tables, charts, and media can coexist on a single sheet rather than occupying a monolithic grid. The application supports over 250 functions, pivot tables, conditional highlighting, and interactive charts with animations. Numbers files can be exported to Excel, CSV, TSV, and PDF formats. iCloud Numbers provides cross-platform access via web browsers, though the native macOS and iOS apps offer the most complete feature set including AppleScript automation and Shortcuts integration.
Continue reading — full technical deep dive
Technical reference
- MIME Type
application/x-iwork-numbers-sffnumbers- Developer
- Apple Inc.
- Year Introduced
- 2007
- Open Standard
- No