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.XLS File Extension

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Excel Spreadsheet Icon
File TypeExcel Spreadsheet
DeveloperMicrosoft
Popularity
3.9 (80 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategorySpreadsheet Files
File Format Description

Spreadsheet created by Microsoft Excel, the most widely-used spreadsheet program; stores data in a table with rows and columns; table cells may contain manually entered data or the results computed from the data of other cells; often used to create charts and graphs.

NOTE: Excel 2007 and later saves spreadsheets in the OpenXML format with the .XLSX file extension.

Common XLS Filenames:

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

Program(s) that open .XLS files
Updated 6/6/2014