Convert ODS to XLS

Convert ODS files to XLS locally, completely free and with maximum privacy.

Drag and drop your files here

or click to browse local files (large files supported, limited only by browser RAM)

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How to convert ODS to XLS

  1. Drop your .ods files above, or click Upload Files. You can add many files at once.
  2. XLS is already selected as the output. Open the settings (gear icon) to fine-tune the result.
  3. Click Convert All. SheetJS runs inside your browser through WebAssembly; nothing is uploaded.
  4. Download your .xls files as soon as each one finishes.

What to know about ODS to XLS conversion

  • Cell values, number formats and sheet names carry over. Formulas are saved as their last calculated values in XLS, and cell styling, charts and macros are not preserved.
  • XLS is best for compatibility with Excel 97–2003 and legacy systems, and opens in Excel, LibreOffice and Google Sheets.

ODS vs XLS

FeatureODS (OpenDocument Spreadsheet)XLS (Excel 97-2003 Workbook)
Multiple sheetsYesYes
Formulas and formattingYesYes
Best forLibreOffice and open-standard documentscompatibility with Excel 97–2003 and legacy systems
Opens inLibreOffice, OpenOffice, Excel and Google SheetsExcel, LibreOffice and Google Sheets

ODS (OpenDocument Spreadsheet): The open standard spreadsheet format used by LibreOffice Calc and other office suites.

XLS (Excel 97-2003 Workbook): The legacy binary Microsoft Excel format (BIFF8), still common in older systems.

Conversion options

  • Active sheet only or all sheets
  • Custom output file name

Frequently asked questions

Is it safe to convert ODS to XLS here?

Yes. Your files are processed entirely on your own device by WebAssembly code running in the browser. They are never uploaded, so nobody else can see them, and the converter keeps working even if your connection drops after the page loads.

Is there a file size limit?

There is no server-side limit. The only limit is the memory available to your browser, typically 1.5–4 GB on desktop computers.

Can I convert several ODS files at once?

Yes. Add as many files as you like; they are converted in parallel according to your device's CPU cores, and you can apply the same settings to all of them.

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