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XLS

Type:Spreadsheet File

Acronym:Excel Spreadsheet

Opens With: Microsoft Excel 2010

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.