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XLS to ODS converter, without the upload.

Turn XLS spreadsheets into ODS. It is converted in your browser, so the file never leaves your device.

Drop XLS files here

or choose from your computer paste with Ctrl V

Ready · other file types work too0 bytes uploaded, ever

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How to convert XLS to ODS

  1. Add your XLS spreadsheets

    Drop XLS files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.

  2. ODS is already chosen

    Press Convert. There is nothing else to set. The work happens in this tab.

  3. Download

    Save the ODS, or download everything as one ZIP if you converted several files.

Why ToAny

  • Private by construction

    The XLS to ODS converter is part of this page and runs inside your browser. Your spreadsheets are never sent to ToAny or to anyone else.

  • No upload, no queue

    Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.

  • Free, without an account

    No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.

XLS to ODS: what to expect

XLS is limited to 65,536 rows and is flagged as a legacy format by modern Excel. ODS is an open standard that LibreOffice uses natively. XLS is at home in compatibility with very old copies of Excel; ODS is the usual choice for spreadsheets in open-source office suites.

Formulas come across as the values they last calculated, and formatting such as colours and column widths is not carried over. Every sheet is kept, under its own name. ODS holds at most 1,048,576 rows and 16,384 columns per sheet.

XLS vs ODS

XLS

Excel 97–2003 workbook

XLS is the binary workbook format Excel used until 2007. It is limited to 65,536 rows per sheet and is treated as a legacy format today.

Opens in Excel and LibreOffice Calc

XLS converter
ODS

OpenDocument spreadsheet

ODS is the open-standard spreadsheet format used by LibreOffice Calc and OpenOffice.

Opens in LibreOffice Calc, OpenOffice, Google Sheets, recent Excel

ODS converter
XLS compared with ODS
XLSExcel 97–2003 workbookODSOpenDocument spreadsheet
Stands forExcel 97–2003 WorkbookOpenDocument Spreadsheet
TypeSpreadsheet workbook (binary)Spreadsheet workbook
CompressionNoneZIP container of XML
Introduced1997, by Microsoft2005, by OASIS
Opens inExcel and LibreOffice CalcLibreOffice Calc, OpenOffice, Google Sheets, recent Excel
Best forCompatibility with very old copies of ExcelSpreadsheets in open-source office suites
File extension.xls.ods

Questions

Are my spreadsheets uploaded anywhere?

No. The XLS to ODS conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.

Is anything lost when converting XLS to ODS?

The values are kept. Anything ODS has no way to express, such as formatting, formulas or nesting, is simplified or left out.

Can I convert several XLS files at once?

Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.

How do I convert XLS to ODS on Windows, Mac, iPhone or Android?

The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the XLS file, press Convert and save the ODS. There is nothing to install.

Is there a file size limit?

Yes. Spreadsheet files up to 150 MB are accepted; a larger file is refused with a message. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.