XLS file format

Excel 97-2003 Workbook

XLS is the older binary format of Microsoft Excel, used up to Excel 2003. Legacy systems and older exports still produce XLS files.

Convert XLS to CSV

Where XLS files open

Excel

Opens XLS in compatibility mode.

Yes

Google Sheets

Opens XLS files.

Yes

Numbers

Apple Numbers opens XLS files.

Yes

Convert XLS to

11 formats

Image

Document

PDF

Spreadsheet

Markdown and HTML

HTML

Convert to XLS

11 formats

Spreadsheet

Other spreadsheet formats