ENFR

XLS · Excel 97-2003

The old binary Excel format.

🔒 Nothing is uploaded. Check the Network tab of your browser: it stays empty.

The old binary Excel format. Best for nothing new, so convert it.

At a glance

CategoryData
MIMEapplication/vnd.ms-excel
Extensions.xls
CompressionLossless
Defined byMicrosoft
Open-

Convert from XLS (11)

XLS → CSVXLS → TSVXLS → XLSXXLS → ODSXLS → JSONXLS → NDJSONXLS → YAMLXLS → XMLXLS → TOMLXLS → HTMLXLS → Markdown

Convert to XLS (10)

CSV → XLSTSV → XLSXLSX → XLSODS → XLSJSON → XLSNDJSON → XLSYAML → XLSXML → XLSTOML → XLSHTML → XLS

Questions

What is a XLS file?

The old binary Excel format. Best for nothing new, so convert it.

How do I open a .xls file?

Drop it on this page: we read it in your browser and can convert it to CSV, TSV, XLSX, ODS, JSON.

How do I convert a XLS?

Pick a target below: 11 conversions from XLS are available, all in your browser.