PDF, XLSX, CSV and 4 other spreadsheet formats can be converted to XLS: drop your files above, and XLS is already chosen as the output. Files are converted on our server and deleted 72 hours later.
What is an XLS file?
XLS – Microsoft Excel 97-2003 spreadsheet. XLS is the spreadsheet format of Excel 97 to 2003. Newer programs still open it, but it holds fewer rows and is bigger than XLSX.
How to convert spreadsheets to XLS
- Click Select File, or drop your spreadsheets anywhere on this page. Any of the 7 supported formats works.
- XLS is already chosen as the output on this page.
- Click Convert, then Download when it's done.
XLS at a glance
| XLS | |
|---|---|
| Layout | Cells in sheets |
| Editable | Yes |
| Created by | Microsoft, 1990s |
| Best for | Old Excel versions |
Frequently asked questions
Why convert to XLS?
XLS is the spreadsheet format of Excel 97 to 2003. Newer programs still open it, but it holds fewer rows and is bigger than XLSX. Best for: Old Excel versions.
Which spreadsheet formats can be converted to XLS?
CSV, ET, NUMBERS, ODS, PDF, XLSM, XLSX.
Is converting to XLS free?
Yes. Everyone gets 25 free credits a day, with no account needed. Conversions on our server use one credit per started minute of work, so most cost a single credit. Credits reset at midnight UTC.
Are my spreadsheets uploaded anywhere?
These conversions run on our server. Your file is sent over an encrypted connection, and both it and the result are deleted 72 hours after the conversion. The server has no internet access while it works on your file.
Convert to XLS from
- CSV to XLS Converter
- ET to XLS Converter
- NUMBERS to XLS Converter
- ODS to XLS Converter
- PDF to XLS Converter
- XLSM to XLS Converter
- XLSX to XLS Converter
All spreadsheet formats
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