Numbers to XLSX
Save an Apple Numbers document as a standard .xlsx workbook with typed cells, supported formulas and merged ranges - written in your browser and checked before you download it.
Drop your files here or click to upload
Supports .numbers · up to 200MB · or paste a file from your clipboard
What the .xlsx you get is made of
XLSX is a ZIP of XML parts rather than a single binary blob, and this converter writes those parts itself. That lets supported column widths, frozen headers and merged ranges be represented directly while the compatibility report calls out anything the reader could not preserve.
| Worksheet parts | One per table, with cell types, formulas and merged ranges |
|---|---|
| Shared strings | Text stored once and referenced, the way Excel writes it |
| Display and layout | Number, currency and date formats, bold and colour, column widths, row heights and frozen panes |
| Drawings and media | Supported pictures embedded at their recorded position and size |
Types survive the trip
The difference between a working conversion and a table of text is whether the types come with it. Numeric cells remain numeric instead of being flattened to strings. Dates become Excel date serials with a standard date format, so sorting and date arithmetic work. Durations - a type Excel does not have - become elapsed-time values that still add up correctly, and the report says so.
Where a value cannot cross unchanged, the converter keeps the last calculated value when it can and the report explains the difference.
How to save a Numbers file as XLSX
- Add the .numbers fileDrop the file onto the page. It is read in your browser, with no upload.
- Check the worksheets it will produceEach table is listed with its size and a preview of the values that will be written.
- Name the workbookThe download is named after the source file by default; change it to whatever you need.
- Save the .xlsxA standard Open XML workbook downloads to your device, ready for Excel, Sheets, LibreOffice or Numbers.
Where the file opens
Excel 2007 and later on Windows and macOS, Excel for the web, Excel on iOS and Android, Google Sheets, LibreOffice Calc, Apple Numbers, and anything else that reads Open XML. If the person you are sending it to did not say which application they use, .xlsx is the safe answer.
Frequently Asked Questions
For a spreadsheet, yes. XLSX is the Open XML workbook format Excel has used since 2007, and Google Sheets, LibreOffice, Apple Numbers and every mainstream mobile spreadsheet app read it. Converting to CSV would flatten a multi-sheet document into one grid of text and throw away formulas; converting to the older .xls would cap you at 65,536 rows.
A ZIP package of Open XML parts: one worksheet part per readable table, a shared string table, a style table carrying the fonts, fills, alignment and number formats read from the document, dimensions and frozen-pane settings, and drawing parts for supported pictures. The compatibility report identifies anything the reader could not carry over.
Yes. Values keep their type: a number stays a number, a date becomes a real Excel date serial with a date format applied, true and false stay boolean, and a duration becomes an elapsed-time value that adds and subtracts correctly. Nothing is written out as text that was not text to begin with.
Where the function exists in Excel, yes - the formula is rebuilt and Excel recalculates it as its own. The value Numbers last calculated is written alongside, so the sheet reads correctly even before a recalculation. A handful of Numbers-only functions cannot be expressed in Excel; those cells keep their calculated value, and the report names each one.
A Numbers sheet can hold several separate tables on one canvas, which an .xlsx worksheet cannot represent. Each table is given its own worksheet, named after the sheet and table it came from. A sheet with a single table simply keeps its own name.
Yes. Numbers reads .xlsx, so the workbook opens on a Mac, an iPad or iCloud as easily as in Excel. That makes .xlsx a reasonable interchange format even between two Apple devices when the other side does not have Numbers.
No. The .numbers file is read and the .xlsx is written in your browser tab. There is no upload step, no API and no server copy. The page loads its own code, including the background thread that does the work, but the file you choose is never part of a request.
Yes. Several files can be queued, converted a few at a time, and downloaded individually or as a ZIP. The ZIP also contains a plain-text report listing each completed workbook, its worksheets and anything worth checking. Available browser memory is the practical batch limit.