.XLS File Extension

There are 2 file types use the .XLS file extension:

  1. Microsoft Excel Spreadsheet (Legacy)
  2. Excel Spreadsheet

1. Microsoft Excel Spreadsheet (Legacy)

Microsoft Excel Spreadsheet (Legacy)

An XLS file is a spreadsheet file created by Microsoft Excel or another spreadsheet program, such as OpenOffice Calc or Apple Numbers. It contains one or more worksheets, which store and display data in a table format. XLS files may also store mathematical functions, charts, styles, and formatting.

Workbook1.xls - The default filename Microsoft Excel gives to new spreadsheets prior to Excel 2007, which creates new spreadsheets with the Workbook1.xlsx filename.

You can open XLS files with Microsoft Excel in Windows and macOS. Excel is the best program for opening XLS files because it fully supports the formatting of Excel spreadsheets, which includes data fields and graphs. Excel is also available for Android and iOS devices.

There are a large number of other spreadsheet programs that can open and edit XLS files, but they may not fully support the formatting of XLS spreadsheets. Alternative programs include Corel Quattro Pro (Windows), Apple Numbers (Mac), and OpenOffice Calc (cross-platform).

You can also open XLS files with various web programs. Google Sheets is a great free option that allows you to upload an XLS file and view, edit, save, and convert the spreadsheet.

Updated: April 6, 2021

2. Excel Spreadsheet

Excel Spreadsheet

An XLS file is a spreadsheet file created by Microsoft Excel or another spreadsheet program, such as OpenOffice Calc or Apple Numbers. It contains one or more worksheets, which store and display data in a table format. XLS files may also store mathematical functions, charts, styles, and formatting.

Workbook1.xls - The default filename Microsoft Excel gives to new spreadsheets prior to Excel 2007, which creates new spreadsheets with the Workbook1.xlsx filename.

You can open XLS files with Microsoft Excel in Windows and in macOS. Excel is the best program for opening XLS files because it fully supports the formatting of Excel spreadsheets, which includes data fields and graphs. Excel is also available for Android and iOS devices.

There are a large number of other spreadsheet programs that can open and edit XLS files but they may not fully support the formatting of the XLS spreadsheets. Alternative programs include Corel Quattro Pro (Windows), Apple Numbers (Mac), and OpenOffice Calc (multiplatform).

You can also open XLS files with various web programs. Google Sheets is a great free option that allows you to upload an XLS file and view, edit, save, and convert the spreadsheet.

Updated: July 31, 2020

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