# Convert XLS to ODS

> Convert XLS to ODS online for free in seconds. Files are processed in a secure, isolated sandbox and deleted automatically. No sign-up, no watermarks.

URL: https://www.converterrr.com/xls-to-ods

- Runs in an isolated cloud sandbox with LibreOffice: files are deleted automatically, and the job uses cloud credits.
- Engines: LibreOffice (cloud).
- API: available. `POST /api/v1/jobs` with `"output_format": "ods"` (paid plans).
- More: [Spreadsheet converter](https://www.converterrr.com/spreadsheet-converter), [XLS converter](https://www.converterrr.com/xls-converter).

## How to convert XLS to ODS

1. **Add your XLS files.** Drag and drop XLS files onto the converter, paste them, or click to browse. You can add several at once.
2. **Choose ODS.** ODS is already selected. Open Options if you want to change quality, size or metadata.
3. **Convert.** Click Convert. Files are processed in a secure cloud sandbox and are usually ready in seconds.
4. **Download your ODS.** Download each ODS file, or everything at once as a ZIP.

## Good to know

- XLS files are typically used for older Excel workbooks, while ODS is best for spreadsheets in LibreOffice.
- This conversion runs on LibreOffice in an isolated cloud sandbox. Files are encrypted in transit and deleted automatically.

## XLS vs ODS

|  | XLS | ODS |
| --- | --- | --- |
| Full name | Microsoft Excel 97–2003 | OpenDocument Spreadsheet |
| Type | Spreadsheet | Spreadsheet |
| Extensions | .xls | .ods |
| MIME type | application/vnd.ms-excel | application/vnd.oasis.opendocument.spreadsheet |
| Best for | older Excel workbooks | spreadsheets in LibreOffice |
| Properties | legacy format, proprietary | open standard |

**XLS:** XLS is the legacy binary Excel format used before 2007.

**ODS:** ODS is the open spreadsheet format used by LibreOffice Calc.

The other way around: [convert ODS to XLS](https://www.converterrr.com/ods-to-xls).

## Related conversions

- [ODS to XLS](https://www.converterrr.com/ods-to-xls) (cloud)
- [XLS to PDF](https://www.converterrr.com/xls-to-pdf) (cloud)
- [XLSX to ODS](https://www.converterrr.com/xlsx-to-ods) (cloud)
- [XLS to XLSX](https://www.converterrr.com/xls-to-xlsx) (cloud)
- [CSV to ODS](https://www.converterrr.com/csv-to-ods) (cloud)
- [XLS to CSV](https://www.converterrr.com/xls-to-csv) (cloud)
- [XLS to HTML](https://www.converterrr.com/xls-to-html) (cloud)
- [Numbers to ODS](https://www.converterrr.com/numbers-to-ods) (cloud)
- [TSV to ODS](https://www.converterrr.com/tsv-to-ods) (cloud)
- [XLS to TSV](https://www.converterrr.com/xls-to-tsv) (cloud)

## Convert XLS to other formats

[XLS to PDF](https://www.converterrr.com/xls-to-pdf), [XLS to XLSX](https://www.converterrr.com/xls-to-xlsx), [XLS to CSV](https://www.converterrr.com/xls-to-csv), [XLS to HTML](https://www.converterrr.com/xls-to-html), [XLS to TSV](https://www.converterrr.com/xls-to-tsv)

## Convert other formats to ODS

[XLSX to ODS](https://www.converterrr.com/xlsx-to-ods), [CSV to ODS](https://www.converterrr.com/csv-to-ods), [Numbers to ODS](https://www.converterrr.com/numbers-to-ods), [TSV to ODS](https://www.converterrr.com/tsv-to-ods)

## XLS to ODS: frequently asked questions

### How do I convert XLS to ODS?

Drop your XLS file onto the converter above, make sure ODS is selected, and click Convert. When it's done, download the ODS file — it usually takes a few seconds.

### Is it safe to convert XLS to ODS here?

Yes. Your file is sent over an encrypted connection to an isolated sandbox that's created for your job only, then both the original and the result are deleted automatically.

### Is the XLS to ODS converter free?

Yes. Cloud conversions like this one use credits, and you get free credits every day (3 without an account, 10 with a free account).

### Will converting XLS to ODS reduce quality?

No — ODS preserves the content of your XLS file as faithfully as the format allows.

### Can I convert multiple XLS files at once?

Yes. Add up to 5 files at a time without an account, 10 with a free account and up to 500 on paid plans, then download them individually or as a single ZIP.

### Can I convert ODS back to XLS?

Yes — use our ODS to XLS converter. Note that converting back and forth between formats can't recover detail lost to lossy compression.