What is and How to Open a XLS File in Windows, MAC and online

Microsoft Excel 97 to 2003 workbook file definition and 3 other types and linked programs information.

How to open xls files

The File extension xls is used by the following type(s):

Default extension for .xls files type: Microsoft Excel 97 to 2003 workbook

This  suffix is related to Excel and its spreadsheet documents. These files can be opened in almost any spreadsheet editor.

Programs that open this format:

  • Ability Spreadsheet
  • Advanced Excel Repair
  • Advanced Office Repair
  • All File to Converter 3000
  • Ashampoo Office
  • Convert XLS to PDF For Excel
  • Corel Quattro Pro
  • docXConverter
  • doPDF Free PDF Converter
  • eOffice (Blackberry)
  • Excel Mobile (Windows Mobile)
  • Excel Regenerator (
  • Excel to PDF Convertor
  • Free PDF Converter
  • LibreOffice Calc (multiplatform software)
  • Microsoft Excel
  • Microsoft Excel for Mac (Apple OS X)
  • Excel Viewer
  • Microsoft Office
  • Microsoft Office for Mac (Apple OS X)
  • Microsoft Office Mobile(Windows Mobile)
  • Microsoft Works
  • NeoOffice (Apple OS X)
  • Office Regenerator (Microsoft Windows)
  • OfficeSuite (Nokia Symbian)
  • OfficeSuite Classic (other devices) (Windows Phone/Metro)
  • OfficeSuite Professional (Google Android)
  • OfficeSuite Viewer (Google Android)
  • OpenOffice.org Calc (multiplatform software)
  • PlanMaker
  • PlanMaker Viewer
  • PrimoOnline (Microsoft Windows)
  • SoftMaker Office
  • SoftMaker Office for Windows Mobile (Windows Mobile)
  • USB Flash Drive for iOS (iOS)
  • Word Excel to Htm Html Converter
  • XLS Converter
  • ZAMZAR – Free Online File Conversion (multiplatform software)

Microsoft Works spreadsheet 

It is associated with Microsoft Works, a now discontinued home office suite developed by the company.

These files were used by some earlier version of Works. The last versions used the .xlr extension for spreadsheets.

Some Microsoft Works .xls files may still be opened in latest Excel versions, but there may be some data formatting loss.


  • Microsoft Excel
  • Microsoft Works


SolidWorks Excel based BOM template 

XLS file suffix is occasionally used for Excel based templates in SolidWorks.


  • IBM Lotus Symphony <(multiplatform)
  • SolidWorks (Windows)


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