Open XLS File Format – Programs and How to

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

How to open xls file

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

Type 1 description:
Default extension for .xls type:
Microsoft Excel 97 to 2003 workbook
This  suffix is related to Microsoft Excel and its spreadsheet documents. Can be opened in almost any spreadsheet editor.
that open this format:
Ability Spreadsheet (Microsoft Windows)
Advanced Excel Repair (Microsoft Windows)
Advanced Office Repair (Microsoft Windows)
All File to Converter 3000 (Microsoft Windows)
Ashampoo Office (Microsoft Windows)
Convert XLS to PDF For Excel (Microsoft Windows)
Corel Quattro Pro (Microsoft Windows)
docXConverter (Microsoft Windows)
doPDF Free PDF Converter (Microsoft Windows)
eOffice (Blackberry)
Excel Mobile (Windows Mobile)
Excel Regenerator (Microsoft Windows)
Excel to PDF Convertor (Microsoft Windows)
Free PDF Converter (Microsoft Windows)
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) Calc (multiplatform software)
PlanMaker (Microsoft Windows)
PlanMaker Viewer (Microsoft Windows)
PrimoOnline (Microsoft Windows)
SoftMaker Office (Microsoft Windows)
SoftMaker Office for Windows Mobile (Windows Mobile)
USB Flash Drive for iOS (iOS)
Word Excel to Htm Html Converter (Microsoft Windows)
XLS Converter (Microsoft Windows)
ZAMZAR – Free Online File Conversion (multiplatform software)


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

These files were used by some earlier version of Microsoft 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.

that open this:
Microsoft Excel
Microsoft Works


type 3 description:
SolidWorks Excel based BOM template 
XLS file suffix is occasionally used for Excel based templates in SolidWorks.
that open it:
IBM Lotus Symphony (multiplatform software)
SolidWorks (Microsoft Windows)


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