Convert to XLS format online, for free.
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FreeConvert supports 500+ file formats. Simply upload your files and convert them to XLS format. Alternatively, you can upload XLS files and convert them to a different format. All from the convenience of one tool!
We use both open source and custom software to make sure our conversions are of the highest quality. In most cases, you can fine-tune conversion parameters using “Advanced Settings” (optional).
Our XLS converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically deleted after 8 hours.
Excel 97-2003 Workbook (XLS) is the original binary spreadsheet format of Microsoft Excel, built on the Binary Interchange File Format and used as the default until Excel 2007. An XLS stores worksheets, formulas, charts, and formatting in one proprietary file, and it can also carry VBA macros. Its main limitations are a ceiling of 65,536 rows per sheet and a greater risk of file corruption than the newer XLSX.
Current versions of Excel still open XLS in Compatibility Mode and offer to upgrade the file to XLSX.
LibreOffice Calc, Google Sheets, and Apple Numbers all read XLS. Because XLS files can contain macros, treat unexpected attachments with caution. Converting your archive keeps it safe and compact — our XLS to XLSX and XLS to PDF tools handle the job.
Developed by: Microsoft
Initial Release: 1987
Freeconvert.me can convert your XLS files to these other formats:
While this page can convert any Document to XLS, you may wish to visit following Converter pages that only support specific conversions
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